I use Chime and love it. Its lack of features is a feature in my opinion. I used Slack for years before using Chime and I’m happy with the switch. I don’t get nearly the chat fatigue I used to get from Slack. Chime reminds me of HipChat and Campfire in terms of UX but with the availability you’d expect an AWS service to have.
It mostly just feels like a byproduct of not-built-here syndrome.
I now find my self yearning for the stability of Chime outside of using Zoom. and using Zoom, feel a concern for my privacy in a way I have never using an AWS product.
Chime's UX design really allows you to join calls without video and without the pressure.
It's great as video doesn't add much to a large conference call.