We did a 5 night cruise on the Constellation with ports of call at Falmouth, Jamaica and Georgetown, Grand Cayman. The decor of the ship was very nice, and we were pleased with our room, although it was a bit smaller than similar class rooms on the Disney ships. Our room was not available until 2.5 hours after we boarded the ship - which was an inconvenience. Additionally, waste water from the shower drain backed up and flooded our bathroom floor one night, and when we tried to contact the stateroom attendant, there was no response. We did contact guest services, who sent an attendant to the room, and eventually a plumber came. He determined that the porblem was not in our room but somewhere further along the line. The attendant came back and cleaned up the mess, but the problem was not corrected until midafternoon the next day.
We found the food to be very good, both in the main dining room and the buffet. We also tried the Spa Cafe, which was OK but not great. We did have a couple of problems with our evening waiter in the main dining room getting orders wrong, then arguing with the passenger rather than just correcting the order. Other waiters during our lunch and breakfast visits to this dining room were far more courteous and friendly.
We enjoyed the indoor thalassotherapy pool - quite relaxing salt/mineral water therapy. However, we were not able to swim in the outdoor pool because it was not heated and the water was shockingly cold. We are fitness & cycling enthusiasts, and found the ship's fitness center to have a reasonable assortment of equipment, but it was overly crowded and people were forced to stand around waiting for equipment each time we were there. Most disappointing to us, the fitness center had 10 spinning bikes standing idle with seats removed while people were waiting to use cardio equipment, because their policy was that the bikes were only available to those taking a class for fee.
We found the nightly entertainment to be very good, especially the quality of performance by the ship's regular singers & dancers. The aerialists were also very good.
Our first shore excursion was excellent! Unfortunately, the second one was rescheduled, then delayed again and again, by the tour operator. While this was not under Celebrity's direct management, we feel that Celebrity should do a better job of screening their providers, especially since this tour was one of the ones that Celebrity was promoting as part of a package.
We are undecided as to whether to cruise with Celebrity again because of our mixed experience - some thing were excellent, others were just plain bad.