Welcome to the boards.

Passenger mix will be similiar to the PG. The Caribbean also attracts a mixed age group. I suggest a cabin close to mid ship or forward. Formality is pretty consistent on the Caribbean itineraries. YOu will see dark suits and some tuxedos on formal night. Women in gowns to simple black pant suits. They are back to the standard bar set up in the room. The experiment for open bar was only last summer. Dont have a schedule here to know your itinerary so I will leave it to others to answer those questions.