Praise: Internal integration of various technologies (Skype, Sharepoint, Outlook Calendar, etc.) and external connectivity with Office 365 constituents is seamless and functional. In particular, remote meetings capabilities, including chat, desktop share, audio, all work well within our corporate network. Also, client-based app and web-based app have essentially the same functionality and look-and-feel, which is definitely preferred. iPhone-based mobile app works well so far. Very good compliment to the main Teams usage on my corporate Microsoft Surface Pro.
Criticism: I was never a fan of the Sharepoint-based file presentation and interface. Windows Explorer in details mode using libraries, shortcuts, etc. is preferred for file management. Maybe Sharepoint file presentation is needed for tablet devices. I’m a longtime laptop point-click user.
Also, in meetings, it was not obvious how to re-display the control bar (enable mute, for example) once the control bar disappeared automatically. I learned how eventually, but guidance on such important items should be more prominent. I had to hunt for a solution.