I don't know why everyone is getting upset.. from what I see with the limited amount of programming capabilities on this system it will never replace anything other than a Lutron Spacer. It will only make it slightly more reliable. These dimmers and their capabilities are not even comparable to RadioRa let alone a truly viable whole house system like Vantage, LiteTouch or HomeWorks. These switches might get someone interested in lighting, but these are in no way a replacement for any of the 4 systems I listed previously.