This thermostat has just been installed but it is the third T6 Wifi thermostat in 3 years. Hopefully this thermostat is more reliable and will last longer.
The geofencing doesn't work with two people. One day I completely lost connectivity and couldn't see the thermostat at all. My wireless cameras were still online so it was the thermostat not the network. **shrug**
My son is a HVAC contractor. He installed it for me. Thanks to him I have the ability to conveniently adjust the air, day or night right from my phone. What a great gift.