Not OP, but I have an Emerson Sensi. It was free after rebates from my local electric company. I like it, though admittedly I wasn’t ever looking for anything fancy.

I can control the temperature from my phone and see simple stats like how much time it’s been heating or cooling each day. It lets me set up schedules, too, of course. It doesn’t do anything flashy like learn my schedule or connect to Google home and whatnot. The app is lightweight be it doesn’t bother me with ads or notifications to buy more junk.