I like this app. It was relatively easy to attach to Wi-Fi and program the times and temperatures. I also like being able to change the temperatures from my phone rather than going to the thermostat.
Not a fan of how when connected to wifi, to which I was told "is just for using the app", it allows the energy supplier to dull down or shut down my AC output. I will never again buy a smart thermostat and am looking to downgrade
Overall, I am very satisfied with the T6 Wi-Fi Thermostat. I found them easy to set-up on the Wifi and generally very easy to use both via the app and also using the touch screen. The only additional feature that I wish these had was being able to do a partial lock on the touch screens and adding a temperature control range to that partial lock. Our T6 Wi-Fi Thermostats are used in a rental house, and we miss being able to put a range that tenants can adjust the temperature to.