We stayed in 1048 and had no complaints. There was very little hall traffic, and we didn't have to wait for an elevator when we re-boarded after being in port. We even saw a crew fire drill which was fascinating for my kids.
We also felt no major motion on Deck 1, only a gentle rocking at night. The only issue I had was that there was a loud banging on the morning we docked in St. Maarten - but I suspect anyone on that side of the ship would have heard it.
Edited to add: we had two small portholes, not one large one like you would see on Deck 2. It was fine for us, each kid had their own.
Have a great time!
Denae