The app is not great and the support for the app is non-existent. I reached out several times for app support and have not heard back. I installed a humidifier in my HVAC system but the app doesn't allow you to see the humidity level or control it.
Overall this is absolutely a great thermostat so far. I have had 2 issues. One was when I had my internet service changed, I had to completely reset the whole thermostat instead of just having an easy way to change the network. The other issue was when the app had randomly froze up a few times. Other than that, I would recommend it for the convenience and the ability to have multiple schedules set.
Easy operation. Sleep light on the screen, lots of settings, works great with my electric company. Can use an outside sensor if available to aide in efficiency.
I had this thermostat installed at my residence when I purchased my new home. It was installed by the builder. I have always used Honeywell thermostats on all my homes and never had any problems with them. I like the T6 but I had a hell of a time trying to connect the thermostat to my phone and the app. After several days and much frustration I finally gave up. I finally had to get help to make it happen. I was ready to buy a different brand. But now that it is connected it works well. It is 2021 this thing should work on the 2.4ghz and 5.8ghz wifi speed. I don't recommend this unit. Get a dual band unit.