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Pros & Cons summary

Buyer's Guide

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Prominent pros & cons

PROS

Office 365 enables seamless collaboration and communication through integration with Teams, SharePoint, and OneDrive, enhancing project management and productivity.
Office 365's cloud-based nature allows access to documents, emails, and calendars from anywhere, providing convenience and flexibility for remote work.
The automatic updates and immediate access to new features ensure that users always have the latest tools and capabilities at their disposal.
The integration of AI features, such as Copilot, improves tasks like document creation, data analysis, and presentation development, boosting efficiency and accuracy.
Office 365's wide range of applications, including Excel, Word, and PowerPoint, provide essential tools for productivity, collaboration, and data management.

CONS

Microsoft support is often criticized for being slow and ineffective, with issues sometimes taking days or even weeks to resolve.
There are significant connectivity issues, especially when accessing data through the web interface and SharePoint.
Integration with third-party applications and mobile services remains a challenge, limiting interoperability with non-Microsoft products.
Performance concerns exist, such as high bandwidth consumption causing slow operation or disruptions when the internet connection is weak.
Pricing is considered expensive and inflexible, leading to budget strains for individuals and smaller businesses.
 

Office 365 Pros review quotes

Anubrata Ghosh - PeerSpot reviewer
Technical Manager at Landmark Group
Jun 2, 2025
Teams is a really good collaboration tool; you can work basically at any part of the world and communicate and collaborate with anybody, as long as they are connected to the internet.
BasilJiji - PeerSpot reviewer
System Engineer at a retailer with 10,001+ employees
Jan 10, 2026
Office 365 significantly improves our operational efficiency by consolidating our phone system, file storage, and email into one ecosystem.
Anita Brüggemann - PeerSpot reviewer
System Administrator at emco Bautechnik GmbH
Apr 16, 2026
The most valuable and useful tool for us is Teams because we can make video calls and share data in a simple way.
Learn what your peers think about Office 365. Get advice and tips from experienced pros sharing their opinions. Updated: April 2026.
893,244 professionals have used our research since 2012.
Gary Cook - PeerSpot reviewer
Executive at Empowered Analytics
May 15, 2025
The collaboration tools in Office 365 enhance my team's workflow immeasurably, and they are absolutely top class.
JM
Test Manager at Skills Development Scotland
Sep 3, 2025
Teams has been really valuable recently as a feature of Office 365 when I've been working on projects where I've needed to collaborate with quite a large group of people.
Adrian Cambridge - PeerSpot reviewer
Head of IT at AHMM
May 13, 2025
Having everything in one place in Office 365, and all the apps integrate together with OneDrive, and the email management is pretty decent.
reviewer2133984 - PeerSpot reviewer
Sr. Security Analyst/Incident Response at a retailer with 5,001-10,000 employees
Sep 3, 2025
The best features with Office 365 include the ability to access email anywhere since it's not an on-premises server, it's in the cloud, which saves us on storage and exchange administration, making it a significant change going from on-premises, which we were for the longest time, to the cloud, so it's definitely a benefit.
Imtiaz  Ahmad - PeerSpot reviewer
System Administrator at wellness one day surgery center
May 22, 2025
Overall, it's really good; the management tools we have, such as device management tools, email management tools, and security management tools, every aspect is there—if we require any tools, we have them.
EB
Controller/HR Manager/IT Manager at a manufacturing company with 11-50 employees
Sep 2, 2025
Office 365 has positively impacted my organization by making the salespeople more accurate because they've been able to use the features in Excel instead of relying on the calculator or adding machine, and some of the AI with writing and things with Word has helped improve things with that, too.
reviewer2702550 - PeerSpot reviewer
Senior Consultant and Service Integration Lead at a educational organization with 10,001+ employees
May 30, 2025
The integrations with Teams and SharePoint are beneficial as we use Teams for sharing and editing documents, which helps with document collaboration.
 

Office 365 Cons review quotes

Anubrata Ghosh - PeerSpot reviewer
Technical Manager at Landmark Group
Jun 2, 2025
I work on a Mac, and sometimes Outlook on Mac is pretty slow.
BasilJiji - PeerSpot reviewer
System Engineer at a retailer with 10,001+ employees
Jan 10, 2026
The reason it is not a ten is because of the complexity of managing the vast array of admin settings, which requires a specialized IT team.
Anita Brüggemann - PeerSpot reviewer
System Administrator at emco Bautechnik GmbH
Apr 16, 2026
Of course, sometimes you can see issues with the state of the software every day, and sometimes there are problems with Teams or Exchange Online.
Learn what your peers think about Office 365. Get advice and tips from experienced pros sharing their opinions. Updated: April 2026.
893,244 professionals have used our research since 2012.
Gary Cook - PeerSpot reviewer
Executive at Empowered Analytics
May 15, 2025
In terms of disadvantages in Office 365, the cost is something some people complain about because I live in South Africa and it is quoted in dollars.
JM
Test Manager at Skills Development Scotland
Sep 3, 2025
I haven't used Copilot too much because I don't have a license for that at the moment.
Adrian Cambridge - PeerSpot reviewer
Head of IT at AHMM
May 13, 2025
I haven't tried working with Copilot within Office 365; it's good, but native ChatGPT and Google Gemini are better.
reviewer2133984 - PeerSpot reviewer
Sr. Security Analyst/Incident Response at a retailer with 5,001-10,000 employees
Sep 3, 2025
Microsoft could improve their support; I don't deal with Office 365 or Office 365 application-specific issues, but I wonder if it's similar where you get someone from Microsoft to hold your case, which could take a couple of days, maybe a week in between when they get back in contact with you.
Imtiaz  Ahmad - PeerSpot reviewer
System Administrator at wellness one day surgery center
May 22, 2025
Technical support from Microsoft really needs to improve because sometimes we have cases that drag on for months.
EB
Controller/HR Manager/IT Manager at a manufacturing company with 11-50 employees
Sep 2, 2025
One of the big changes is when Microsoft updates anything, they will switch where some of the settings are and where to find them, which becomes a little frustrating because you're used to it in one spot and it's someplace else.
reviewer2702550 - PeerSpot reviewer
Senior Consultant and Service Integration Lead at a educational organization with 10,001+ employees
May 30, 2025
Microsoft could improve their online apps compared to the desktop versions, as they are not easy to use.