We booked M253 and it was completely quiet. It is set up as a quad cabin which I should have paid more attention to when I booked. It has the wooden structures on both sides of the room which are the murphy beds. With only two of us, these beds took up space and next time I will make sure it is a double room, not a quad or a triple. No refrigerator on carnival in this class of ships which was a disappointment. I think most of us expect a fridge of some sort in a balcony room. That was my only gripe. The shower was larger than I expected. I loved the room and the balcony was so pleasureable.