I went almost a year ago, last week of October. Was not aware it was "renovated" in 03. It looked great for the age..so that would explain it. It is hard to compare the motion to the bigger ships, because was different weather conditions. I am only responding because I must be honest about it..It was the only time I almost got sick on a cruise. The front of the ship was dipping way below I have ever seen, and was the first time I have ever seen barf bags put out. Our trip on Nassau was cancelled the day before, so when we headed back up could have been the result of whatever went through the area. I went to desk and got a pill, then decided I would feel better if I had a few drinks..I did,..and did. So is hard to say if was the Celebration's size or not, but was the most movement I have seen and felt on a Carnival ship. Mind you that was on the way back to Port Canaveral, and by night it had calmed down. Is my best answer as never came close to being sick before. It was a good cruise and hope you have one too