Constantly falls offline. Process to reconnect is excruciating. Directions to connect are not user friendly at all. I have 2 thermostats and am NEVER able to use the app for viewing, let alone adjusting and ALWAYS must go to devices and control manually. It would be kinder not to pretend this app is helpful in any way since the devices the app is set to control fail to maintain their connection for more than a few mere moments.