I think this cruise was about as good as it gets. Here are some specifics:
-Our "penthouse suite" (category B) was very comfortable and we were impressed with the walk in closet. We upgraded a couple of weeks before the cruise from a lower category because we were offered a half price deal. However, Our cabin was the same size as the lower categories and the only real difference was butler service. As far as I could tell, the butler's primary function was to bring us six shrimp every afternoon--very good but not work $15 each ($1500 for the upgrade for 15 days).
-The ship was spotless, well maintained and had great facilities. Smoking was limited to very few areas and was not an issue (one reason we chose Regent over Silversea was because Silversea permits smoking throughout the ship and, based on my conversations with them, has no plans to change this outmoded policy).
Cabin 867 (category B. It's near the laundry room and toward the stern. There was no noise from the laundry room. Soundproofing was excellent and we never heard noise from other cabins. The cabin was very comfortable and, like others, featured a large walk in closet with ample room for suitcases, a marble bathroom with tub and stall shower, a sofa plus table and chairs and a furnished balcony.