Hello David, Yes I live in O.C. and love the power roof. It's the distinguishing feature of the ML line from other SUV's. When I first saw it I was deliberating between a couple of cars, the skyview was the tie breaker!

Hey MB Doc, thanks for the answer. It's not really noisy but I can hear it when I park in the garage and what makes me curious is that it runs sometimes even when the engine is started for a minute or less. What do you think about that??