We've stayed in 6616 and we LOVE the location. It is just so convient to walk out your door and be right at the elevators!! The Aft elevators aren't really that crowded, so if you need them they are pretty quick. We mainly used the stairs, and being on the sixth deck you're generally only 3 decks away from anything, either way. We loved the location of 6616 on our cruise last year, we've booked the same stateroom for our Magic cruise next year!!! Whoops... I forgot to answer your question about noise. We NEVER heard any noise associated with the elevators, and we were in our rooms pretty early, by 9:30 most nights (little kids) and weren't bothered it by the least!!