Yes, but there were three gotchas that make it difficult to use for our purposes - one is that you have to have your phone on and connected if you want to use the same account on another device. Given I use my phone as much like a dumb phone as possible and turn data off when I don’t need it (aka most of the time) it’s impractical to use. We kinda got around this by having different accounts for different devices bit it left you guessing which account to contact someone on because you don’t know if they’re on their phone, laptop, PC, etc.

It uses a a chunk of battery and the devs seem completely disinterested in UnifiedPush.

A lesser but helpful feature that’s lacking is web chat. It’s a lot easier to get family and friends sold on alternate chat clients if they can try it out using a web browser they already have instead of installing yet another app.