[DangerousPie]

Video/sound quality is much better than any alternative I have tried. You can see video from up to 25 (or even more now?) people at the same time. It's easy for people to set it up and join meetings. Easy to share screens/audio.

[extra88]

I think seeing up to 25 people in Gallery view is the default but there's a checkbox to enable seeing up to 49 people.

Schools like it because it can handle hundreds of participants in a single meeting and you can pay for extras to handle over a thousand.