We have sailed Celebrity before and had a previously purchased voucher to use. I gave my travel agent 2 time slots that fit into our schedule and chose this cruise on the Reflection based on the itinerary and the timing.
Our first cruise was on Celebrity and we loved it! This time, not so much. If it hadn't been for Estelle in guest relations I would have needed to give it a lower score.
While the rooms and cabin stewards are still awesome, we definitely saw a lower level of food quality and activities than we did on our first cruise in 2004. Some examples - no sushi was ever offered on the lunch buffet, the crackers offered with cheese were packaged saltines (and first few days were stale), no deck parties with food.