I bought my smart thermostat (Ecobee) for a couple reasons - 1. Economic - it easily paid for itself in one summer by not running the A/C when no one is home.

I bought my smart thermostat (Ecobee) for a couple reasons - 1. Economic - it easily paid for itself in one summer by not running the A/C when no one is home. I have geofencing set up to do this automatically. 2. Comfort - my office/bedroom temperature is all I really care about as it's where I spend all my time. My thermostat was not wired to there, and temperatures fluctuated wildly in my office. Ecobee has remote sensors so that I can set the rooms I care about to the correct temperature. Overall, it has certainly made my life a lot less complicated; I never have to touch the thermostat again to get comfortable in my office, and I save a lot of money too.