jorakal, I actually have one connected to one of my controllers. It works fine, it isn't on my main house controller yet because there was an issue in 7.0.19 with a motion sensor that I use in my home, so I haven't fully integrated it yet. I have the round one. I would say that it is OK. I get some notifications from its app that wouldn't come through Vera, like low humidity levels. I can also make quick temperature changes through the Apple Watch which is great.
We worked very closely with Honeywell on the integration, it should work for any of the Lyric family thermostats. TCC thermostats are a different integration protocol and they do not work with the Lyric protocol.