We were on the Wonder last week in 2610- rather close to your rooms. We loved the location. Near the aft elevator which gave us easy access to all the restaurants (Parrot Cay and Triton's is just up one flight, Animator's up two, and the drink station and buffet up at 9). We were located under the kitchen and heard very little noise. We did hear a few loud bangs, but it's a ship and you'll hear odd noises from time to time in most cabins anyway. We found the halls mostly quiet, though the ship was crawling with kids (800 of them last week) and occasionally a few would be running down the halls, etc. We also felt a lot less motion than on the upper decks. DW gets sea sick, so the difference was very noticeable to us.
We liked the cabin so much we booked it again for the same cruise next year.