Been using it for more than a year at our University.
We used to have a mix of Adobe Connect (ugh), Skype, and the usual suspects (Webex/ GotoMeeting) but some people at one of our schools recommended we test Zoom, and we found it to not only be very solid but also super intuitive and easy to use for non tech savvy users.
We have pretty much entirely switched to Zoom at this point, though our IT also recommends Teams for integrated use (which I am not fond of).
My only minor problem at times has been their audio compression quality as opposed to video, specially when using wide area mics like tabletop boundary in noisy environment (conference rooms..., though I guess that's where they push Zoom Rooms.