works really good. the reason why i wanted this thermostat is u can adjust when heat pump starts
my old thermostat made my heat pump run every 2 to 3 minutes{ very little differential}. this thermostats has so many good features. u can also adjust when your auxiliary heat comes in also.
Finally found a tstat with adjustable swing ... None of the ones at HD do that, 1 degree swing, the HVAC clicks on every 5 minutes. So much better .. clicks on way less, starts when it is actually cold and runs for longer until it is actually warm.