Our stateroom was 2337, a Category 7C cove balcony on Deck 2, between the forward and midship elevators (closer to midship). That was an excellent location. It was very quiet (we were below the Northern Lights Dining Room), and it was very convenient (very close to the midship and forward elevators).
However, the first night, there was an annoying noise. I honestly don't know what it was, since it was not repeated on any night. I did notice a pipe on the edge of our balcony. Do all cove balcony rooms have that? If not, was the noise somehow related to that pipe? And if so, why only that one night? The water was rough that night. It might have been raining, I don't know. Looking at the deck plan, it is possible that we were below one of the Deck 5 hot tubs. Maybe the pipe was for that? Maybe it was raining, and the pipe was clearing the water from the hot tub? In any case, we did not hear that noise at all after the first night, so this is more a curiosity rather than a complaint.