We sailed on the Celebrity Reflection for an eleven night Eastern Mediterranean cruise in May, 2014. We also tried out Aqua Class. All in all, the cruise was excellent.
Our cabin was on the 12th floor, right below the pool deck. This did not lead to any extra noise. We were on the bump, so the balcony was a bit larger. The cabin was nice, and not really all that different from a normal balcony cabin. One notable exception was the shower, which sprayed water out at you from the side if you wanted it to.
The main attraction of Aqua class is that you eat in Blu. This is a nice restaurant, with good food and good service. They did struggle a bit with vegetarian options for my wife, but I was in steak heaven! You also get access to the Persian Garden, which was nice but not overly special. Was Aqua Class worth the extra money? Yes, it was. However, I am sure I would have enjoyed the cruise just as much without it. I would say—go for it if you want to treat yourself, but you will be fine if you decide not to.
Our cabin was on the 12th floor, right below the pool deck. This did not lead to any extra noise. We were on the bump, so the balcony was a bit larger. The cabin was nice, and not really all that different from a normal balcony cabin. One notable exception was the shower, which sprayed water out at you from the side if you wanted it to.