Put very simply, we (my adult daughter and I) had a very enjoyable experience.  The staff on the ship were all very helpful and courteous.  The cabin was spacious and clean.  The meals were good (not great).  The ship offered a nice selection of activities and entertainment.  We visited Progresso/Merida, Cozumel, and Belize.  We took a tour of some ancient Mayan ruins, spent time relaxing on a beautiful beach, and went cave tubing in the jungle.  The only warning I would offer would be to take several hundred dollar more than you think you will need.  All the photographs, drinks, and excursions...