Meh. We had a Nest, but our HVAC guy talked us into a Resideo and we wish we had not bought it. Our nest had a remote sensor which we loved as our house, like most, varies in temperature quite a bit, depending on where you are located. We tried to buy a remote sensor, but found out that it's not an option with the model we were given. On top of that, the scheduling feature is not as intuitive as the Nest. It functions and that's about it. IMO, it was a waste of money as we had a perfectly functioning thermostat and are now stuck with a less than mediocre one.
My first smart thermostat. Easy to use, good interface. I was worried about the app and security, and spam, but that wasn't the case. I find that the geofence lags a bit, and good respond a little better. It has saved me a lot of money! Overall very happy. Only thing is, like I said, first ever smart thermostat so I have nothing to compare it to.