I purchased three weeks before the starter set, and after successful installation again three radiator thermostats. I use the system in my holiday home, and wants control of my principal residence from the radiator there. Four hours before I get there, I fix the thermostats to 21 ° C. So the theory. In the beginning everything worked out fine. In the second application, the disappointment: The Max portal on the Internet could not be reached. I arrived in a cold house. Today, 1.1.2015, the same story. I can not reach and drive my heating the server. Again, the house is cold. On a forum I know that the portal already at 31.12. not working. Say people, you want to do with your really good idea but shops. So that does not work! Buy yourself a better server! Sets professionals who look after him round the clock! At the moment I can not recommend the Max system, but maybe there are more protests and things improved.