Karen, that's a good question. A lot of people like the decor, and apparently it is very similar to the old Renaissance. In fact, as you many know one reason they have been very booked is that the old Ren passengers remember those ships very fondly.
I may be in the minority here, but I didn't especially care for the decor. Its very, very Ritz Carlton - brightly colored Oriental carpets and draps, English antique-looking furniture in the public rooms. To me it was "over the top" - I guess I prefer something more understated. Ritz Carlton at Sea just doesn't appeal to me.