we were in 7560 on the Magic... starboard side.. kind of near the elevators, no noise though. we usually used the aft stairs, only used midship going down to the restaurants and when we came back from our excursions (or if I was "lost", I was directionally challenged on the ship). Not much movement, the gentle rocking felt good when falling asleep, but I guess that would depend on the seas. We only had one night where we bounced off the hallway walls going back to our cabin.
so if the Wonder is set up like the Magic, you should be fine.