My third cruise on Century and I feel the ship shows it's age compared to other Celebrity vessels. While some people enjoy the smaller size of the Century, it lacks features found on the larger ships. I especially missed an indoor pool on Century. A lot more noise/cavitation from the props on this ship vs. the pods on more modern ships.
I met many extremely friendly crew on the ship -- especially in the Crystal Room "elite" happy hour and the Hemispheres continental breakfast. They work very hard keeping up with some guests who drink like fish (e.g., multiple double-shot Bloody Marys every morning for one old codger).
I was told the average guest age on the cruise was close to 70. It seemed much higher than on any Celebrity cruise I've taken before. So many wheelchairs and walkers -- it could have been Holland America! It's a less than terrific guest experience when an already fairly full elevator is packed even fuller by people who can't wait for an empty elevator (or take one or two flights of stairs). Anyway, enough ranting on some of the oblivious/rude older guests.