1st time cruising on Carnival Glory, the ship had no issues but the service level at dinner time has gone down since our 1st cruise 4 yrs ago.
3X's we had to ask for iced tea at dinner, when typically they remember and give you the same drink night after night, they did not and we had to ask each time. We finally gave up and drank water.
Sometimes we didn't have all the dinnerware at our table, ie...missing spoons, missing butter, missing glasses...etc...
we had an interior cabin which was nice and quiet which makes for good sleeps. We've not yet had a balcony.