Sandro,
I do not do much residential work but last yaer we did a house and installed the new cheeta system similar to the one you are talking about. I found it to be very user friendly, and much faster to install. They even come with their own boxes and no screwdrivers needed to install the receptacles. I posted a thread on it in august or sept. I found the fit of the plate to be very nice and professional. Forgive my lousy keyboard skills.