So far not good, it is not letting me open account to setup new ecobee thermostat. We had a Honeywell for years, worked great, then new folks took over app stopped working then within six months the thermostat stopped working. Two local HVAC dealers gave thumbs up to ecobee, got it, but can not even get app to create an account, so don't know how well the app is after that point. Tonight will be first use of unit itself without the app of course.