Agree, nothing ventured, nothing gained. So I suggest you find an itinerary you like and book it. IMO, you can't go wrong with either the M or S class ships. Can't comment on E class ships as we take our first E class ship cruise in March. Select a stateroom category you usually book with the other cruise lines you cruise with. Then decide for yourself if Celebrity is awesome or not. We sleep around and like the similarities and differences between Celebrity, RC and Princess.