This was the first cruise I had been on with RCI. It was my wife and I's honeymoon - and it sure was a great one! We sailed the southern Caribbean (San Juan, Aruba, Curacao, St Maarten, St Thomas) the third week of January.
Prior to departure, we filled out all the necessary information online and printed off our SetSail pass. I definitely recommend doing this, as it shortened the time it takes to get onto the ship initially by quite a bit!
We flew into San Juan a day prior to the first day of the cruise and stayed at the Radisson Ambassador in downtown San Juan. We already had prepaid vouchers for all of our transportation everywhere regarding the cruise, and it all went very smoothly. We didn't venture out too far from the hotel though, and went to a couple small restaurants in the immediate vicinity for entertainment.