I'd heard the Glory was one of Carnival's highest-rated/most-loved ships, and I can see why. No cruise is ever completely without flaw, but Carnival did great by us, and we liked this ship better than their newer Magic which we sailed last year. Here are some thoughts:
Embarkation: Quick. Arrived around 1pm and was on board by about 1:45. We asked how soon before we could go to our room, and it was already available. That was a first. Very impressed.
Room: Spa Deck Balcony, definitely nice enough if a bit smaller than the cove balcony on the Magic. Carnival rooms have always been nice and spacious. This room was airy, clean, and had very comfortable beds.
Nice room, no real complaints. Deck 11 is the highest passenger deck so your balcony will be a bit sunny and the room is right below a public area (Serenity - not too noisy) so it's not entirely private. Room is adequately quiet except for very light sleepers b/c there will be some elevator dings nearby and you can make out some vacuuming noises around 1am in the spa next door.
Not great for: People who dislike being far from the main dining room, dislike using stairs, and dislike waiting for the elevator. People who require a laundry room on their floor. (Though Deck 9's laundry isn't far.)
Great for: People who love the gym or spa, people who want to use their balcony for photography or want lots of wonderful, fresh breezes.