I've got to say that I've always wanted to love hangouts but it always makes my laptop (reasonably powerful macbook pro) immediately max out CPU and make fan noise like a spaceship taking off, and for comparatively worse AV quality than the competitors. The only thing that kept me using it was that I didn't have to install crap. Just used meet for the first time yesterday, reserving judgement there, but honestly I didn't need yet another rebrand from google.

Zoom is the exact opposite: You have to get the client but it client works with minimal resources, on many platforms (phone / laptop is seamless for me) scales perfectly with large meetings / screenshare and video at the same time, laggy mobile connections etc etc. Most importantly it ALWAYS works. I never have to futz with it ever (whether in terms of connections, or "your link doesn't work", "you have to invite me", "user is from a different organization than you" etc). Just get the meeting ID and connect. This is how technology should work in 2018.