I have used it, and it works fine.

Use it. Love it. Looking to add the call-in feature next.

Found it to be pretty unstable compared to zoom, especially when you get more people on it. Trying to convince people to use it is frustrating.

Especially the hosted version: would it work for 30 ppl?

Jitsi works great for me. Just know that using it with Firefox is not optimal, particularly for > 2 participants due to certain bandwidth optimizations not being available on Firefox. This pains me as a Firefox user.

Observed that firefox 47 and 60 clients kill the stream for all participants. firefox 68 works fine. Not sure why a client failure would cause a crash on the server but it's not a great experience.