Rob,
I have checked this system out and it is very nice. The hart of this system, and why they make the claim to have better noise rejection is the firewall. What you do is take each wire at your main breaker panel, that goes to a circuit you want to use for control and disconnect it from the breaker. You then take this wire route and connect it into Lightolier panel. This new panel is mounted on the wall next to your current breaker panel. You then run a new power wire from the old breaker (where the circuit was) to the their panel for power. You need to do this for every circuit you want to control devices on.
What this system does is filter noise and manage signal traffic on this wiring. I does a great job by taking control of each circuit individually. It is a very nice system but a bit pricey when you consider all involved with the installation. This install I would not highly recommend to the do it yourselfer. Their 8-circuit panel can be had around $600 and this is a bargain compared to list price. One interesting thing is their 6 button transmitter prices, they are selling their transmitter, the same one that is sold as a KeyPadLinc ($85) for $200. When I asked them about the price discrepancy they justified the increase due to their firmware.
All said, I really liked the system and if money were no object I might like it more but at the same time I would also start looking at some CeBus and hardwired systems.
Bill
www.homeautomationnet.com