I've been on a few Royal Caribbean cruises. This one was a bit disappointing although still enjoyable. I was excited when I booked it as it was one of the larger ships. The last cruise I was on was Navigator of the Seas and I loved it. That had a capacity crowd of about 3000 people. This one has 4500, and the first thing I noticed on this cruise was how crowded it could be at times. That is noticeable when getting in line at the cafes, at guest services, or getting off the ship. Getting off the ship was a borderline nightmare(partially because of customs due to every port being a foreign crossing).
Amenities were great. I had a lot of fun doing the sky diving and the observation arm.
Rooms felt a little smaller than I remember. Not sure if they have always been as small. Can't remember. It was fine though.