I have had 3 Ecobee thermostats in my house for over 3 years. They have been extremely reliable and have an API, so I can do all sorts of fun stuff with them.

I have had 3 Ecobee thermostats in my house for over 3 years. They have been extremely reliable and have an API, so I can do all sorts of fun stuff with them. Right now I'm working on hooking them up so my themostats change settings when the house is empty based on the presence of family member phones on our LAN.