Actually to me the most important issue with Crystal is the FIXED seating dining. Two seatings sit with the same people every night. This is something I just cant handle anymore and really feel at this level of luxury you should be able to eat when you like and with whom you like and not in a 2 seating program.
That said I have not sailed Crystal BUT I am going to try it on December 15th. There is a special TA program and I know that I need to experience it. I have booked it three times and cancelled but I am off to expand my knowledge.