I like them. I use Sonance for the higher end systems and Nuvo for the rest.

On the Sonance, I love their K2 keypads. Digital display, double gang with a master/slave feature. This allows one zone (such as a master bedroom) with the K2 master keypad, and a cheaper keypad (or even just a volume control) in the en-suite on the slave.

By doing it this way, it only uses up one zone on the system (lets face it, you're going to want the same source in those two rooms anyway) and you can turn the spkrs off in the bedroom and have them on in the en-suite even though it uses the master keypad that is located in the bedroom.

I have used this master/slave configuration for open concept kitchen/dining rooms, front and rear decks/porches, and even entry way halls and main floor wash rooms.