My gripe with compose is that the signals only
work on the circuits that have compose. So if
you have overhead lights on one circuit and one
lamp on a separate circuit you have to dedicate
a compose circuit just to handle one lamp. The
idea behind X10, which is that, you can add devices
anywhere. Compose takes care of noise and signal
strength issues quite well, but in order to get
it to what a good X10 system does, you need to
add it to every circuit. In most places that
could be 30 or so breakers. I like the idea of
compose, but find that a well-done standard X10
system with a good coupler repeater, quality switchs
and noise filtering works just as good.

Bill
www.homeautomationnet.com