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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

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 17, 2026
The most valuable and useful tool for us is Teams because we can make video calls and share data in a simple way.
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.
Learn what your peers think about Office 365. Get advice and tips from experienced pros sharing their opinions. Updated: June 2026.
900,747 professionals have used our research since 2012.
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.
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.
reviewer2795739 - PeerSpot reviewer
IT operation manager at a tech vendor with 1,001-5,000 employees
Jan 10, 2026
Office 365 has positively impacted the organization as it is productive, easy to use, and serves as the main tool for meetings and external communication, crucial for day-to-day operations.
RV
Senior Specialist at HCLSoftware
May 29, 2025
Microsoft Teams is a very good option for me to connect within the organization or with my team; we can also connect with external teams, share links, share screens, and take control of other people's meetings.
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.
JL
Manager, Research & Development, Enabling Technology at ASM Pacific Technology, Ltd
May 26, 2025
Office 365 has AI capabilities that improve our processes, as we are using Copilot to assist us in writing documents.
reviewer2023968 - PeerSpot reviewer
IT Administrator at a university with 51-200 employees
May 13, 2025
Practically, we could implement remote learning very fast, and it was very helpful, Teams especially.
 

Office 365 Cons review quotes

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 17, 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.
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.
Learn what your peers think about Office 365. Get advice and tips from experienced pros sharing their opinions. Updated: June 2026.
900,747 professionals have used our research since 2012.
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.
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.
reviewer2795739 - PeerSpot reviewer
IT operation manager at a tech vendor with 1,001-5,000 employees
Jan 10, 2026
Office 365 can be improved by increasing support, which currently is not efficient and takes a lot of time to resolve issues.
RV
Senior Specialist at HCLSoftware
May 29, 2025
In terms of improvements for Office 365, I don't think there is much that needs to be enhanced, but it might take some time to reload sometimes.
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.
JL
Manager, Research & Development, Enabling Technology at ASM Pacific Technology, Ltd
May 26, 2025
For additional features that would make Office 365 even better, I think of better linking with Microsoft.
reviewer2023968 - PeerSpot reviewer
IT Administrator at a university with 51-200 employees
May 13, 2025
There was a problem with the owner of a Team; although it was listed as an owner, he couldn't do whatever an owner can do.