I started using x-10 back in 1994, when Radio Shack sold the devices and you had have an x-10 alarm clock to trigger different events. I kept talking about it and my wife got me the x-10 pro system for Chirstmas 2005. This setup really sucks, nothing has changed except for the fact that the interface is better considering my old system had no computer interface. When I think of Home Automation, I should walk into the house and not worry about the temperature or humidity(air quality), and items should operate without issue. The CM15A should operate without difficulty, thus I shouldn't have to walk towards and away from the unit praying I hit the zone in which it recieves. I could probably employ equipment from 12 years and have better results. I know Radio Shack is crappy company to get modern technology from, yet they dropped X-10, so how out of date and unstable is this technology.