First thermostat was defective and needed replacement. 2nd works, although for some reason I receive an alert saying there is a defect in the indoor temperature sensor. Cannot figure out why and no one to really ask. Unhappy!!
A bit cumbersome to setup and register because of having to switch back and forth from airplane mode to normal mode on my cell phone. After it was setup I added a pass code to access the thermostat remotely but the apps needs it entered 2 or 3 times before it accepts the pass code.
App seems to crash a couple of times a week. Also the app is slow to update its status. Install was the only good part of the process being fairly straight forward.
So far so good with our new thermostat. It took me two times to activate it not sure why it did not work the first time (could have been me). But I am loving it!!!