I've done a couple of Caribbean
cruises on the Cunard line years ago. They were nice, but we spent so little time in port that I did not get much out of the experiences.
It all depends what you are looking for. If I was going to do a paying cruise
, I would do a Star Clipper Cruise when they are moving the ship from the Med to the Orient or in the opposite direction. At least they will have sail up part of the time and there is a little of the clipper ship experience.