Honestly I found the "smart" parts of my nest to be pointless once I connected it to HA.

I have automations, sensors, and weather in HA.

I'm looking at moving to a zwave thermostat now. I wouldn't have gotten the nest but it was a (re)gift and I didn't want it to go to waste.

Now Google made it waste.

Yeah, same feeling. The "learning" portion ended up being a bust. My HA automations are a lot simpler, so a beautiful dial on the wall, that I can control locally and automate, is what I'm after. All the Zwave thermostats have been so ugly as far as what I have found