I managed a internal version of jitsi meet, its great, but it has had a bunch of glitches and issues with parties with more than ~15 people on it.
Full disclaimer: I'm a friend of the founder, however I'm a paying customer due to the fact that
1. It's worked wonders with my clients and 2. It's so much better than hangouts or skype.
Compared to the big boys it may be considered a bit spartan but for what it does, it does it extraordinarily well.