The key thing for most users is how simple the user interface is (or isn't!). devolo have excelled themselves here, as he Home Control system has an easy to use and clear web interface that you can access from within your home, or externally via a free login at mydevolo.com Of course, no home automation system is complete without a mobile app. The devolo team have developed apps for both Apple and Android based devices, meaning you can receive notifications from your home while you're away, and also control key items like temperature set-points for your heating.