The ship was very large but it seemed to handle the number of passengers relatively well. We didn't experience unbearably long lines and there seemed to be room at most of the performances and events. It may have been our dinning times, but the lines actually seemed a little shorter than on some of our previous cruises.
The decor is a little more muted and tasteful than other Carnival ships we have been on. I thought it was a nice improvement.
We had adjoining ocean view cabins. With three small children we do not want a balcony. The major plus of these cabins is that in most of them you get an extra "bathroom" that contains a short tub and a sink. This means that in one cabin you get two sinks (in different rooms), a shower, a tub (with a second shower), and a single toilet. This is a very nice setup when you have a lot of people sharing the cabin. Otherwise the cabins were basically the standard on the newer Carnival ships. They are relatively large and comfortable, if somewhat plain. I don't know if it was our location, but ours was the quietest cabin I have experienced on a cruise ship.
Very quiet, extra "bathroom" (tub and sink) an added plus.