We were asked by friends to go with them on a Regent cruise that included Havana, Cuba. Not having been to Cuba and knowing that Regent was in the same class as Crystal (which we had sailed before), we agreed. We booked and paid for a Category D, concierge suite on deck 9. This suite is known by Regent to be noisy and they admitted there was a design flaw in the ship that allows the sloshing of the swimming pool water to be heard in "6 or 8" cabins. Still, they sell these cabins with no disclosure and no discount (like an obstructed view cabin might be sold on other ships) hoping no one would notice or complain.
We did complain but they said nothing could be done as the ship was full.
On day 3 of the 7 day cruise, a penthouse suite on deck 10 opened up (I don't know why) and we were moved to the larger and butler attended suite. It was an appropriate and appreciated response but a 6 star cruise line and ship should never have such issues.
This original cabin is unacceptable for all but the most tolerant (or hearing impaired) guests. A drain pipe from the pool overflow "gutter" apparently traverses the ship right behind the bed in this cabin and there is constant sloshing, gurgling and swishing from the pool. NOT a category "D" accommodating. Don't book this room and I would question similarly placed rooms on the other side of the pool and in the immediate vicinity of the pool on both decks 9 and 10.