Food- The most important thing on a cruise. You don't want to starve on a cruise. I've done that once and so has my wife. The Constellation has very good food. You have good choices and it's prepared very nicely. They also serve larger portions than most cruise lines. Room service gives you a nice variety to choose from. Better than many other cruise lines. Made to order waffles, and made to order omelettes. We had those on another cruise line, but Celebrity made it better.
Entertainment- I didn't like it that much although my wife seemed to like it. Don Gavin, The Godfather of Comedy, was very good. I liked his show. They had Pearl Kaufman there, but except for the movie themes she played I didn't like her show. She did tell some interesting stories about some of the people she worked with and worked for.
Gym- This cruise ship has a nice gym that I went to every morning. I may have taken some classes, except that most mornings was taken up when the classes were given.
Ship- They didn't make a lot of announcements so it was relatively quiet. I got caught up with some badly needed rest. I enjoyed being able to do that.