Just off the Carnival Breeze (my 42nd cruise, 12th with Carnival), so I wanted to add a few comments to those discussed. I thought the dinner food in the main dining room was actually some of the best I have recently had when you factor in the mass catering preparation element. A great selection was offered and service was fantastic. Try getting the main dining bottom room in the aft of the ship as it is nicer, more spacious, and more comfortable then the low-ceiling mid-ship dining room. The casino was one of the best game selections and layouts with very little smoke issues among the slots since most slots were designated non-smoking and it was enforced by a terrific casino slot floor crew.
Embarkation was well organized, arriving at 11am and onboard by 11:45am. We are Platinum and so are many others who were waiting for the new FTTF (Faster to the Fun) 1st boarding rights. It was the only time (besides port days) were the buffet, by noon, was still manageable without the heavy crowds.
My biggest issue was, indeed, the quantity of passengers on this ship. Long buffet lines and extremely slippery buffet room floors (watch several passengers slipping!) made it for an unpleasant eating experience there. We tried to eat in the main dining room as much as possible to avoid this. The more secluded Italian Restaurant upstairs in the aft Horizon buffet area offered a secret escape to eat without the crowds. We always brought are lunch up there to eat.
The stateroom beds are truly uncomfortable and had the room attendant put two comforter pads which really helped (there are no egg carton foam pads anymore). Fill the bag laundry was quick (less than 24-hour turn around).
Production shows were different as they tried to engage a series of only 8 performers against a video wall of changing sceneries. It just does not work well. Comedy shows were crowded (go the 7:30pm family show and it was the least crowded) but the comedians were funny and the adult shows were the best. Comedy Brunch is a waste of time as they just promote their upcoming evening show and tell only one or two jokes every hour during the 5 minute Comedy Brunch performance.
Fitness Center had plenty of treadmills, a small weights section, low ceilings (means that max. treadmill inclines was limited to 5% !!!), and poor a/c (very warm) due to the layout and crowd.
The ship had a medical emergency one hour after leaving St. Thomas and had to return the ill passenger back to St. Thomas. This did not affect the cruise schedule except that the cruise director put everyone on edge (complete silence in the dining room) when he first tried to explain, over the public address system, why the ship was returning to the port. So for the first 30 seconds of his announcement we all thought something serious happened to the ship itself before he finally said it was an ill passenger.
Disembarkation was well organized and we chose a later (tag #23) disembark instead of tag #2 which means getting off the ship at 9:40am instead of 6:30am. Went for breakfast that morning at 8:15am and since our flight was not until 1pm, it was preferred to get off later than sitting in the airport for 5 hours.