We use the tool for project collaboration within our team. It helps us manage our daily activities. We've also integrated Slack with other tools to schedule our meetings. I'm unsure if we're currently using a professional or standard license, as there may be some limitations. Overall, we're utilizing it mainly for collaboration purposes.
Business Development and Product Owner at wrightia
A collaborative tool that helps to manage daily activities
Pros and Cons
- "Nowadays, we don't need to visit an HR portal. Our marketing and human resources teams directly share details about birthdays, upcoming events, and important dates in Slack. Whether it's a training event, a company-wide gathering, or a social event, all the information is shared there. This keeps us all updated."
- "We could see improvement in Slack by having an integrated meeting tool. Currently, we rely on third-party integration tools like Zoom to schedule meetings. It would be much more convenient to schedule meetings directly within Slack without additional integrations. It needs to have calendar and CRM integrations as well."
What is our primary use case?
What is most valuable?
Nowadays, we don't need to visit an HR portal. Our marketing and human resources teams directly share details about birthdays, upcoming events, and important dates in Slack. Whether it's a training event, a company-wide gathering, or a social event, all the information is shared there. This keeps us all updated.
It's very easy to share files in Slack. We need to drag and drop or upload them. The tool's mobile application experience is user-friendly.
What needs improvement?
We could see improvement in Slack by having an integrated meeting tool. Currently, we rely on third-party integration tools like Zoom to schedule meetings. It would be much more convenient to schedule meetings directly within Slack without additional integrations. It needs to have calendar and CRM integrations as well.
One of the things that could be improved is when you are writing; if you press enter, it automatically sends the message. Sometimes, that happens when you want to add a paragraph inside the Slack tool. You can use the Macintosh command function to move to another part.
Sometimes, it's not easy to delete messages. I'm unsure if you have a specific timeframe to delete.
For how long have I used the solution?
I have been using the product for three years.
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Slack
June 2025

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What do I think about the stability of the solution?
The tool is quite stable, but it has bugs and glitches.
What do I think about the scalability of the solution?
The tool is scalable. It has been constantly improving. My company has a total of 75 users. However, only 43-44 users use it daily. We have an engineer and a manager to maintain it.
How are customer service and support?
I haven't contacted technical support yet.
How was the initial setup?
The tool's deployment is easy.
What's my experience with pricing, setup cost, and licensing?
The tool's pricing could be cheaper.
What other advice do I have?
The search functionality in Slack is currently limited for me due to my Slack license. I have a history limitation where only one month of history is available. Once the deadline passes, everything is deleted, so I cannot access older or former messages. I rate the overall product a seven out of ten.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.

Provides a more convenient and efficient alternative to email, especially for internal conversations and coordination
Pros and Cons
- "Slack helps us keep the conversation focused and avoid multiple threads that create more confusion. I would say that has been the biggest advantage for us."
- "For me, the only thing I can say is that every time somebody sent me an attachment, the attachment was listed somewhere, and then I had to open the conversation and go to the individual to open it. So there is no handy repository or an easy way to quickly look at attachments. For me, that was a bit difficult."
What is our primary use case?
We primarily use it for internal communication and coordination. Mostly, we were using it to share information and then, you know, use it more as a repository for exchange and communication among users.
So we were using it more like an alternative to email, at least for all internal conversations and coordination. That's one. And mostly to share info and share docs, etcetera.
How has it helped my organization?
Basically, the fact that we moved to one platform and away from emails has helped us. Everybody can see what everybody else is saying, so we don't have to plow through tons of emails. The fact that there is a history already there for somebody to see, at least since the time they became a member of a group or a team, is the biggest time saver.
We can always scroll back and look at the history to see what happened and react based on the context of the conversation or discussion. For me, that would be the biggest advantage of moving away from emails.
What is most valuable?
Our usage was fairly limited. We used it to communicate with our team internally, and, in some cases, we had Slack channels with customers as well. But that was purely to ensure that the information was accurate and there were no different versions. Everyone was aware of the latest happenings. That's the only feature we actually used. We never used any other features.
However, I appreciated that it was easier than email and more comfortable than sending emails. The entire conversation is recorded in one place where anyone can go back and look through past discussions, statements, or situations. It's much easier than trying to figure out how to use the search feature in email. And, obviously, given that multiple threads could be initiated, email can lead anywhere. Slack helps us keep the conversation focused and avoid multiple threads that create more confusion. I would say that has been the biggest advantage for us.
What needs improvement?
For me, the only thing I can say is that every time somebody sent me an attachment, the attachment was listed somewhere, and then I had to open the conversation and go to the individual to open it. So there is no handy repository or an easy way to quickly look at attachments. For me, that was a bit difficult.
I would say that having a small panel with a list of all shared attachments with whom I'm conversing would be important. Many times, I had to search and had some trouble finding the file. But that's about it. That would be a significant improvement based on my experience.
For how long have I used the solution?
I used Slack for a year and a half.
What do I think about the stability of the solution?
I would rate Slack as very stable. I don't think we ever had an issue with it. I would say it's a nine out of ten for stability. It was very stable. We never had any major issues with it.
What do I think about the scalability of the solution?
For my use case, I would rate the scalability a nine out of ten. Other than the limited issue of searching for files, I didn't find too many issues. But overall, it was highly scalable and served its purpose well.
Our organization was small. It was about 25 people. So everyone was using it, and we had clients and partners as well. So we had around 30 to 35 people using Slack across our organization and external contacts.
How are customer service and support?
We used to reach out to our internal team, and they handled everything. If we ever needed support, we would go through them.
What about the implementation team?
We have an IT team to take care of the deployment. There was no maintenance required. Whenever there were situations where Slack was down, we were informed. So there was nothing else except for updating the client version whenever a new update was released. But that's the extent of the maintenance. It was limited to that. It was more like an app update. Since it was on the cloud, there was nothing else for us to update. Whenever a new update was available, Slack would send us a message, and we simply updated it.
What was our ROI?
In terms of return on investment, I think it was okay. We were pretty satisfied with it, although there could have been improvements, especially in terms of pricing. But compared to the alternative of using Gmail, we found Slack to be more efficient in organizing content and information.
It was more time efficient and helped you save time compared to writing emails. It was faster than writing emails, but the ability to organize content and information properly is what I appreciated the most.
I would put Slack around seven out of ten, in terms of return on investment.
What's my experience with pricing, setup cost, and licensing?
I would rate the pricing model a seven out of ten, where one is low, and ten is high price. It's on the more expensive side. For the usage we had, it would have been better if there were different pricing plans because we were not utilizing all the features that Slack offered. Although, there were no additional costs.
What other advice do I have?
I would definitely recommend it. However, it depends on the situation. There may be other Slack alternatives available now. Especially for internal communication and coordination, there might be better tools suited for specific use cases. So, based on my personal experience, I would recommend Slack, but it depends on the specific use case.
I would rate this product overall a nine out of ten. They are delivering on what they claim. Whether it meets my specific use case or not, it's more about the product fit for what I wanted to achieve. But considering the extent to which we used it and its alignment with our goals, I would rate it around nine out of ten.
Which deployment model are you using for this solution?
Private Cloud
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
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Slack
June 2025

Learn what your peers think about Slack. Get advice and tips from experienced pros sharing their opinions. Updated: June 2025.
861,524 professionals have used our research since 2012.
Senior Director of Engineering - Information Security at Apna
Stable performance with minimal outages and good features like Huddle
Pros and Cons
- "Slack offers several valuable features. Firstly, they have a message deletion feature, which is now available in other software as well, but Slack was the one who introduced it in enterprise solutions."
- "The video calling experience on Slack needs improvement."
What is our primary use case?
Slack is primarily used for communication, file sharing, and sometimes for Huddle, which is similar to a Zoom call within Slack. You can start a call with the person directly.
What is most valuable?
Slack offers several valuable features. Firstly, they have a message deletion feature, which is now available in other software as well, but Slack was the one who introduced it in enterprise solutions.
Additionally, Slack has a great feature for creating communities. This means that if you want to communicate with someone from a different company, you can create a channel specifically for them. They won't have access to other channels or public channels in your company, only the channel you've created for them. This is particularly useful for our interactions with one of our client, as we have a dedicated channel with them, allowing us to receive support. It's one of the best use cases I've seen for Slack, apart from its primary use for intra-company communication.
What needs improvement?
The video calling experience on Slack needs improvement. We prefer using Google Hangouts for video and audio calls because the call quality on Slack is not up to the mark. There is still for improvement in this aspect. The audio and video quality is not so good.
So, we have two applications for communication. One is Slack, and the other one is Google Hangouts. So, it is definitely an area of improvement.
For how long have I used the solution?
We started using Slack in 2018, so it has been around five years.
What do I think about the stability of the solution?
Slack has been stable for us. We have experienced only one outage since we started using it in 2019.
What do I think about the scalability of the solution?
Everyone in our company, approximately 1,300 employees, is using Slack.
How are customer service and support?
We contacted Slack's support team when we were building a bot using Slack. They were quick to respond and provided us with the necessary documentation.
How was the initial setup?
Setting up Slack was very easy. It's an out-of-the-box solution that can be quickly deployed.
Slack is hosted on the cloud. It is a SaaS tool, we don't need to worry about the hosting details. We access it through slack.com, just like accessing Facebook without knowing its hosting details.
What's my experience with pricing, setup cost, and licensing?
Slack is definitely worth the money.
What other advice do I have?
I would recommend using Slack. You can also consider Microsoft Teams. They are a good alternative. In fact, if you are using Microsoft Azure cloud, Teams can be more cost-effective for you compared to Slack. However, if your company is on AWS or Google Cloud and not using Microsoft Cloud services, then Slack would be a more affordable option as a standalone system. It's worth noting that Teams comes bundled with a license for Microsoft Cloud subscriptions.
I would rate Slack a nine out of ten. They have had very few outages, and the software's features and GUI are impressive. However, there is room for improvement in the calling experience.
Which deployment model are you using for this solution?
Public Cloud
If public cloud, private cloud, or hybrid cloud, which cloud provider do you use?
Amazon Web Services (AWS)
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Principle Product Manager at a healthcare company with 10,001+ employees
A versatile and highly scalable collaboration platform that excels in facilitating communication, document sharing, and integration with various tools
Pros and Cons
- "It offers customization options for various applications, including integrations with Zoom for video calls and a wide range of other integration plugins."
- "It would be highly advantageous if it could incorporate calendar information from sources like Outlook or Gmail, providing users not only with meeting schedules but also a comprehensive daily agenda view."
What is our primary use case?
I used it for managing competition-related matters, as well as for handling announcements regarding new products or services. It was also a go-to platform for tracking logs related to ticketing and service issues that required urgent attention, as well as for internal tasks like software deployment and operationalizing services promptly.
What is most valuable?
One of the key benefits is the ability to easily share large video files and documents without any limitations. It also integrates with ticketing systems like Jira, allowing you to add plugins, such as Outlook, to streamline collaboration with emails. It offers customization options for various applications, including integrations with Zoom for video calls and a wide range of other integration plugins. This flexibility in integration is a significant advantage. You can segment your user base into different channels based on shared access, ensuring efficient communication. One recent noteworthy feature is the collaboration space, known as Slack Canvas, which enables users to share and edit documents collectively.
What needs improvement?
It could further improve by expanding its integrations to include conference platforms, such as Atlassian and its products. Integrating with platforms like Medium for article sharing and tagging, as well as LinkedIn for publishing posts and connecting them to Slack, would be beneficial. It would be highly advantageous if it could incorporate calendar information from sources like Outlook or Gmail, providing users not only with meeting schedules but also a comprehensive daily agenda view.
For how long have I used the solution?
I have been using it for four years.
What do I think about the stability of the solution?
While downtime occurrences are not very frequent, there have been a few instances when we experienced outages on certain days. Overall, it is relatively stable compared to some other solutions.
What do I think about the scalability of the solution?
It is a highly scalable solution, given that over ten thousand daily users rely on it for their work. As the user base grows, managing channels can become overwhelming, and maintaining them can be a significant challenge in such cases. It may require a minimum team size of around thirty to forty people or more to manage it effectively.
How are customer service and support?
We don't interact directly with Slack; instead, we rely on our internal support teams for any issues.
Which solution did I use previously and why did I switch?
We used Microsoft Teams previously. While Slack offers numerous advantages over Teams, the one area where it could improve is in providing a more robust system for document collaboration and organization, similar to the functionality found in SharePoint.
How was the initial setup?
I do not have insight into the enterprise-level installation process, but accessing it privately is straightforward. You typically receive an invitation, a secure password, or an order code, allowing you to join the designated Workspace. Once you're part of that Workspace, you gain access to various internal channels, which is a significant benefit.
What's my experience with pricing, setup cost, and licensing?
When it comes to pricing, it is on the expensive side.
What other advice do I have?
I would rate Slack at around eight out of ten. It's a pretty decent platform that many startups and new companies prefer today, especially for larger audiences. One of the drawbacks or areas for improvement is the learning curve users from Microsoft-based products like Link, Skype, or Teams might face when trying to adapt to Slack's architecture. Slack's structure is quite different, and it can take some time for users to become acclimated to this new orientation. Once users overcome this learning curve, it proves to be a robust and highly effective tool that can benefit many users.
Disclosure: My company has a business relationship with this vendor other than being a customer. Partner
Dx Strategist at SK Telecom
An easy-to-setup solution with good communication management features
Pros and Cons
- "The solution's initial setup process is easy."
- "It could be more stable than one of its competitors."
What is our primary use case?
We use the solution to manage communication within our organization.
What needs improvement?
The solution could be more stable compared to Microsoft Teams. Also, we encounter errors with Slackbot while granting authority. It needs to be more straightforward in providing documents.
What do I think about the stability of the solution?
I rate the solution's stability a six and a half. It could be better.
What do I think about the scalability of the solution?
We have 200-300 solution users in our organization. I rate its scalability a seven out of ten.
How was the initial setup?
I rate the solution's initial setup process a nine out of ten.
What's my experience with pricing, setup cost, and licensing?
I rate the solution's pricing as five out of ten. It is less expensive than Microsoft Teams.
What other advice do I have?
I rate the solution a nine out of ten.
Which deployment model are you using for this solution?
Private Cloud
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Data Analyst and Developer at Bridge Labs
The user interface and user experience are wonderful, and the solution can be integrated with various tools
Pros and Cons
- "The product gives the best user experience."
- "The notifications on the phone are delayed."
What is our primary use case?
My organization uses it for collaboration and updates. We use it for meetings. Slack can be integrated with Confluence, Google Meet, and Zoom. We use it for important events. We constantly check Slack for updates from our bosses, CTO, and CEO.
What is most valuable?
The solution provides spell-check features while messaging. People cannot join groups without the admin’s permission. Slack’s security is really, really good. Even if something happens to our mobile phones, we can still retrieve our messages in Slack. I like that we can integrate the solution with various tools. The product gives the best user experience. The interface is wonderful.
What needs improvement?
The product could improve its notifications. The notifications on the phone are delayed. The notifications on the laptop come on time, though. There’s a latency issue in the application.
For how long have I used the solution?
I have been using the solution for four years. I am using the latest version of the solution.
What do I think about the stability of the solution?
I rate the tool’s stability a nine out of ten. I had an issue when I was using Slack on a Linux distribution. Not all Slack integrations are reliable. The version of Slack on Windows is far more stable than Linux. I did not contact the support team for it, though. I just deleted the application and reinstalled it.
What do I think about the scalability of the solution?
I rate the tool’s scalability a nine out of ten.
How was the initial setup?
The initial setup is very easy. The product is deployed on the cloud. The deployment takes a couple of minutes. It has very low latency.
What other advice do I have?
I advise everybody to use the solution. It is one of the best tools that a company can use. It is specifically designed for collaboration within the workplace. Overall, I rate the product a nine out of ten.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Service Desk Specialist (L1 Plus) at Electric AI
A collaborative tool used to communicate with other teams, but it tends to crash once a month
Pros and Cons
- "Slack is a very collaborative tool that makes it easier for me to communicate with the onboarding and billing teams."
- "Slack tends to crash once a month."
What is our primary use case?
I work alongside other departments, and we use Slack mainly as a source of communication.
What is most valuable?
Slack is a very collaborative tool that makes it easier for me to communicate with the onboarding and billing teams.
What needs improvement?
Slack tends to crash once a month. We have to keep an eye on the dashboard status because there is always an issue with attachments or sending images once a month. The application crashes out of the blue. There are issues in general with the application, especially the desktop application.
For how long have I used the solution?
I have been using Slack for about a year.
What do I think about the stability of the solution?
Slack’s stability works fine for us.
What do I think about the scalability of the solution?
Slack is a scalable solution. About 500 to 600 people are using Slack in our organization.
How are customer service and support?
I contacted Slack's customer support because I once faced an issue sending invitations. It was an issue on their end that was easily fixed because they were super helpful.
How would you rate customer service and support?
Positive
How was the initial setup?
Slack's initial setup is super easy.
What other advice do I have?
Slack is deployed on-cloud in our organization.
Since it's very easy to collaborate with the tool, I would recommend Slack to other users.
Even though Slack is a very useful tool with many incredible features, the fact that it tends to crash once a month makes it a little bit difficult to work with.
Overall, I rate Slack a seven out of ten.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.
Data Analyst at a university with 1,001-5,000 employees
A scalable and easy-to-use product that enables seamless communication and collaboration within teams
Pros and Cons
- "The huddle feature is valuable to me."
- "The product should provide integration with other solutions like Gmail or Outlook."
What is our primary use case?
I use the product to chat and huddle with company members.
How has it helped my organization?
It doesn't offer much in terms of improving the organization. It's just used for chatting, being in touch with others, and setting up meetings.
What is most valuable?
The huddle feature is valuable to me. We can easily make a video call.
What needs improvement?
The product should provide integration with other solutions like Gmail or Outlook.
For how long have I used the solution?
I have been using the solution for more than two years.
What do I think about the stability of the solution?
The solution’s stability is good. I rate the stability a ten out of ten.
What do I think about the scalability of the solution?
I rate the solution’s scalability a ten out of ten. All 150 people in my organization use the product.
Which solution did I use previously and why did I switch?
I use Microsoft Teams and Google Chat as well. I'm more comfortable with Google Chat because the interface of my Gmail and Google Chat is on the same page. I do not need to open two different software.
How was the initial setup?
The initial setup was very easy. It took five to ten minutes.
What other advice do I have?
The product is not difficult to use. Overall, I rate the solution a nine out of ten.
Disclosure: My company does not have a business relationship with this vendor other than being a customer.

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