I would be willing to increase rating if the app is updated regarding the criticism I mention; lots of disconnects (forced stop doesn’t help). Can't set exact temperatures for exact times of day, example: you can only set in half hour increments and you can only choose between 3 temperatures you set for "home", "away" or "sleep". You can only set the furnace fan on a timer using the wall unit but not the app. The hardware is actually great, but its brought down by the limitations of the app.