I walked the corridors of the new AquaClass staterooms on deck 11, and I would think they should be rather quiet. There is a new sun deck above the rooms that is almost completely empty with just very few deck chairs, and the grill I wouldn't expect to be too noisy either. The pool is very far away from these rooms.
Do be advised that the back of deck 10 is a designated smoking area that the rear-most AquaClass balconies overlook. If you are a non-smoker this could prove uncomfortable.
And I also know there are some rooms on deck 9 that are AquaClass as well.