I don't think it measures temperature accurately in cold weather so i have to frequently manipulate it up and down like an 1880s steam engine to get the right efect in the house. But, it may be that the placement of the unit is poorly chosen by the installers.
Bought two T6 Pro Thermostats to run my new heating system. They worked great for 6 months. This was a replacement for first floor thermostat that failed. In 50 years of using Honeywell Thermostats this was the first that ever failed. I like the thermostat but hope I don't have to keep replacing them.
Because my thermostat is mounted upstairs, now I can change the temperature without going upstairs. I just wish it had the capability to automatically switch between the preprogrammed cooling & heating cycles.