We're used to Princess but heard good things about Celebrity so we tried it.
Some pleasant things compared to Princess, a lot that we miss not having.
The library is open 24/7 and you don't have to sign books out. The buffet is open and airy, with a large selection and variety..individusl stations instead of a long line of dishes. Real drip coffee, not canned out a machine. But they don't clear away dirty dishes very quickly...lots of empty but dirty table.