In 2020 the thermostat and app worked great. Now it seems to be full of bugs and I spend more time on them than anyone should on a thermostat. I'm disappointed with the purchase after first year. Save yourself the money on the sensors. I find them to be more of a bother as well because they do not perform as intended. They are trying to make the app and thermostat do so much it's convoluted and buggy now. Also, don't email their tech support. Last two times I got responses after 3 days.