I am the contractor, I installed it. The first one gave me the radio error code for the WiFi not working. Second one is working but the app sends me notifications a few times a day saying it lost connection.
No ability to see daily usage is disappointing. I replaced my AC and Nest thermostat and got this one with the install. I knew how many hours my old AC ran each day because of the Nest. Would have loved to see the hours for my more efficient AC.
I am using T6 Wi-Fi Thermostat with a York heat pump. This thermostat is easy to use and program, however it does not have a build in humidity stat to allow the indoor furnace fan to use a lower speed during AC mode to dehumidify the house.