I agree in many respects, but I must say that our dinner in Murano, though we booked out then entire restaurant, was excellent. I will be writing more about that.
Overall I certainly agree that a luxury experience really isn't possible on this ship. Age, short itineraries, not the best itineraries, lack of some of the modern niceties, etc. all play a part.
I will write extensively about this, but then again, I must say there is a strong market for the Century...not my market, but a strong one nonetheless.