I'm booked on the 10/29 transatlantic & am very excited about it.
There is a bit of new information about a policy that is just now being implemented. Beginning with the very first voyage, the Spa Staterooms on decks 10 & 11 will all be non-smoking. Initially Carnival was being very secretive with this new policy, but they are now notifying travel agents of this change, although they haven't "officially" made an announcement on their web site. It will make a big difference, both pro & con, to many cruisers.