The idea is good! Take modern heating thermostats, they connect by radio with other components such as wall thermometers and window contacts and steer the whole internet. Each of the apartment or want to control from a distance its heating, dreaming of such a facility. The individual components are also quite solid and appealing set up - the installation and networking clearly and logically. Weak point is the control over the cube, ie, the Internet connection. This starts the installation. Which is described only briefly and not really understand what to do there. Man sitting in front of flashing LEDs and understands slowly that you probably should look in the home network even if has not signed a new device. Under what name to something logs, is nowhere in the documentation. But even then the installation is not done and you have already googled plenty of surfing to guess at the connection concept on the portal. Sometime hears the Internet LED Cube blinking - when and why exactly you do not know really. Anyway, you are then in the network and can then control the devices on the quite appealing apps. The control concept is again very attractive and simple design - the way you want it. While this could be something styliger, but it does its purpose and is easy. Especially when working with the wall thermostat +, one sees setpoint and actual temperatures and can easily control. But weakness remains the portal! Because sometimes it refuses access - but says it only coyly about the status bar when you last had contact. That may have been hours. If you enter changes in temperature in this state, only happens on the Iphone something - nothing is transmitted. The app does not warn of an unreliable connection, nothing Passier. If you then anwirft installing software in the domestic network, you get told that the cube for some time had no network connection - for whatever reason, since the Internet LED lit continuously and after some back and forth tuts then again. But you do not really know if it was on the installation or on site. Diganostic Tolls missing since just .. It's annoying at some point, because in such situations do not know which settings the system because now drives. It would be glad if you could or would know that the system after some time driving a particular setting a fallback strategy. Who wants to control as an apartment, has no more information, in which control state is the system. So overall a good product idea that is not but mature. I'd like to pay 100 more and also reasonable prices for a good portal service, if it is because then reliable. So there is a tinkerer solution. I'm sorry.