We use the solution for internal communication within the company. We also use Slack for one-to-one messages and audio and video meetings.
Information Technology Operations Manager at Vertilio
Used for internal communication within the company
Pros and Cons
- "The most valuable features of Slack are basic chatting, file sharing, and screen sharing."
- "Slack's screen sharing might also add the remote control feature, which is not there."
What is our primary use case?
What is most valuable?
The most valuable features of Slack are basic chatting, file sharing, and screen sharing. I've also used the solution for automation.
What needs improvement?
Slack's screen sharing might also add the remote control feature, which is not there. You cannot control somebody else's screen if they're sharing it. You can only view it. That is one feature that could help.
For how long have I used the solution?
I have been using Slack for eight to nine years.
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Slack
April 2025

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What do I think about the stability of the solution?
The solution's stability is good enough. Sometimes, it hangs a little, but you can force reload it to make it work.
I rate the solution’s stability a seven out of ten.
What do I think about the scalability of the solution?
Around 800 users use the solution in our organization on a daily basis. I've used the solution with 20 to 30 people, and it has worked fine.
How was the initial setup?
The solution's initial setup is easy.
On a scale from one to ten, where one is difficult and ten is easy, I rate the solution's initial setup an eight to nine out of ten.
What was our ROI?
The solution improves productivity and makes it very easy to coordinate with your teammates. Slack makes it easy to work in groups and easily search for information.
What other advice do I have?
Slack has improved the way our organization functions. It spares you the trouble of emailing back and forth. You can just hop on a channel and interact with all the interested parties rather than waiting for emails to come and then responding to them. The solution really improves the organization's productivity.
I was running a monitoring setup. Whenever there was a high-priority alert, I linked it through Slack's webhooks feature so that I would receive a message on a certain Slack channel that something was down. I would recommend the solution to other users.
Overall, I rate the solution ten out of ten.
Which deployment model are you using for this solution?
On-premises
Disclosure: I am a real user, and this review is based on my own experience and opinions.
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: I am a real user, and this review is based on my own experience and opinions.
Buyer's Guide
Slack
April 2025

Learn what your peers think about Slack. Get advice and tips from experienced pros sharing their opinions. Updated: April 2025.
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Support Engineer at Salesforce
Creates customizable applications while improving accessibility features
Pros and Cons
- "Slack offers the ability to make customizable applications and plugins."
- "In Slack, there are areas for accessibility improvements."
What is our primary use case?
Our clients use Slack because it is highly customizable, allowing us to create applications and plugins to easily connect with various applications and receive updates.
What is most valuable?
Slack offers the ability to make customizable applications and plugins. It facilitates the connection of various applications to receive and send updates. It's for popular applications like the calendar and others and it is also adaptable for cloud applications, making customization straightforward.
What needs improvement?
In Slack, there are areas for accessibility improvements. For example, Canvas has options for reading documents in particular channels, however, these could be more accessible. There are some accessibility glitches where status is not accurate, unlike Microsoft Teams, which provide accurate status updates.
For how long have I used the solution?
I've been using Slack from July or September to November, which accounts for one and a half years now.
What do I think about the stability of the solution?
The stability is rated six to seven out of ten. It can benefit from updates, as it's sometimes not easy to restart.
What do I think about the scalability of the solution?
The scalability is rated as high, with a score of eight out of ten.
How are customer service and support?
Customer service and support can be rated as an eight out of ten, with good support and the ability to report issues.
How would you rate customer service and support?
Positive
How was the initial setup?
The initial setup is rated nine out of ten, indicating it is easy.
What about the implementation team?
We are like an implementer that acts as a partner.
What other advice do I have?
I would recommend Slack to other people, and I would rate the overall solution as an eight out of ten.
Disclosure: My company has a business relationship with this vendor other than being a customer: Implementer
Last updated: Nov 24, 2024
Flag as inappropriateService 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: I am a real user, and this review is based on my own experience and opinions.
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: I am a real user, and this review is based on my own experience and opinions.
Manager at a computer software company with 1-10 employees
Suitable for small companies and stable solution
Pros and Cons
- "Slack is a very stable product."
- "The reason is we are moving towards a new CRM, so we have a suitable solution to integrate with the new CRM."
What needs improvement?
The reason we are considering other products is because of integration. It doesn't integrate with CRM or ERP. We worked with Microsoft Exchange and we worked with CyberArk. We have what we need, so we don't require Slack anymore. But I think it's a good product.
The reason is we are moving towards a new CRM, so we have a suitable solution to integrate with the new CRM. We have more specific needs now. Slack lacks in certain integration.
For how long have I used the solution?
I have been using this solution for two years.
What do I think about the stability of the solution?
Slack is a very stable product. However, with the free version, we only have limited message history access in the free version. But overall, it's a good product and a good solution.
What do I think about the scalability of the solution?
There are around ten end-users in my company using this solution. There is only one administrator for the solution.
How was the initial setup?
The initial setup was very easy.
Which other solutions did I evaluate?
Slack is a good product in its free version, but currently, we are integrating it with VM-sharing solutions like Dolibarr. We are also exploring other products similar to Slack. So, in about a month, we will be moving towards these new products and won't be using Slack anymore.
However, until now, for the past two years, it has been a good product.
In the new CRM RFP, we plan to use Nextcloud. We also use SysTrack, but it's free. That's how our organization works. We have our own server, etcetera.
So, the only problem is we could not integrate it with our new solutions.
What other advice do I have?
I would definitely recommend Slack for small companies. For medium and large companies, I'm not sure. Maybe there are integrations available in the premium version of Slack. Otherwise, it is a very good product.
Overall, I would rate the solution an eight out of ten .
Disclosure: I am a real user, and this review is based on my own experience and opinions.
IT Test Manager at a transportation company with 10,001+ employees
Easy to use with an intuitive interface and the screen sharing works well
Pros and Cons
- "The most valuable feature is the screen sharing, which works well."
- "I would like the text in chat to be more customizable."
What is our primary use case?
We are using Slack for web conferencing. It is primarily for external communication with one of our suppliers.
What is most valuable?
The most valuable feature is the screen sharing, which works well.
This solution is freely available to almost everyone.
The tracking, integration tool, and voice calls are all good.
The user interface is intuitive for me.
What needs improvement?
There should be better integration between Slack and Office 365.
It should be easier to work collaboratively on files.
I would like the text in chat to be more customizable.
For how long have I used the solution?
I have been using Slack for a couple of months.
What do I think about the stability of the solution?
We have not experienced any problems with stability. We use it maybe once a week to contact one of our suppliers.
What do I think about the scalability of the solution?
As a user, I have not had problems with scalability. I am part of a small group that makes use of slack but that doesn't mean that it isn't widely used in the company.
How are customer service and technical support?
I have not been in contact with technical support.
Which solution did I use previously and why did I switch?
We are using multiple web conferencing tools including Mircosoft Teams, Skype, and Slack.
I would say that the user interface in Slack is more intuitive than in Teams. One advantage to teams is that it is fully integrated into Office 365. I would say that collaborative working on files is better in teams. In our situation, the focus of Teams is internal, rather than with external partners.
What other advice do I have?
Overall, this is a good product and I can recommend it. It's easy to use and so far, it has been reliable.
I would rate this solution an eight out of ten.
Which deployment model are you using for this solution?
Public Cloud
Disclosure: I am a real user, and this review is based on my own experience and opinions.
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: I am a real user, and this review is based on my own experience and opinions.

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Slack can be used right away also for small companies. I personally do not need tons of integrations. It is beneficial on its own. And it runs super stable.