Great embarkation process, smooth, quick, no problems with my daughter (16) no passport. Small hiccup setting up onboard account, Carnival rep?? kept swiping my credit card and entering numbers manually got a little worried about getting over-billed, so far no problems.
Went with 2 of my brothers, one brought his fiancee the other his daughter they seemed to have no problems either.
Saw lots of reviews about sewage smell, noticed nothing like that in our rooms on 1st floor, smelled something a little funky on 7th floor when checking out hidden decks, but nothing overpowering. Our cabin (1236) small but were rarely in it except to sleep, my daughter was out till 2 or later most nights.
Ok we weren't in it much, kept real clean. Very nice for what it was.