We were on the CROWN last April doing the Souther caribbean out of San Juan. We loved it. In fact the Crown recently went through a "dry dock" period, to get fesh painting, among oher things.
My suggeston is MAKE your own decision, and do not let so called "bad reviews" hender your selection.
Remember VACATION is just that, make the best of it. If you get on board only thinking of the bad reviews, you will most likely start looking at every nook and cranny to make their point.
Good luck on your selection