My new home came with the T6 wifi t-stat, and after overcoming a few initial connectivity issues is performing great. Tech support was fantastic, and had it quickly corrected. The t-stat features are user friendly, and I'm very happy with it thus far.
This was a great thermostat for the less then two years I had it. The only reason I went back with it was because it was under warranty. I would look for something else. It’s not compatible to 5g internet.