The place was very quiet and as everyone has mentioned, an amazing location. We parked the car and walked everywhere.
Note that the bunkbeds aren't really in a room-- they are in a small alcove-type area with sliding doors. Neither the main bedroom or the bunkbeds are sound-proof. This wasn't a problem for us, as we were a couple traveling with my brother, and we all went to bed at the same time.
Also, even though there are no windows, the interior patio let in plenty of natural light to the living room.
Very cute place.