This ship is not suitable for dancers. Music focuses on the 50's and 60's, with some 70's disco. I even heard "Macarena"- I haven't heard that in years. But they didn't have "Sex On The Beach"- too racy, I guess. The dance floor in the Rendezvous lounge is too small for ballroom. The group there tries to accommodate requests, but only has 2 mambos, 2 merengues and 2 tangos. They play 3 hours a night, often less.
The Bar At The Edge Of The Earth (BEE)is on deck 11 forward, susceptible to any movement. The dance floor is larger but a metal disco-wannabe with raised joints, not a very good surface at best, and often dirty from cooking displays. The deck band plays there for an hour most nights- very monotonous, the same disco-y stuff over and over. After that, the disco. The group I was with kept it open till 4 AM twice, which the DJ said was unprecedented. I gather anything after 10 PM is usually pretty dead.
I understand the Constellation is due for refit so I will not say much about maintenance, but BEE definitely is due for refurbishing.