We drove in from Orlando the morning of the cruise. Used an internet parking coupon from Park n Go and we were at the terminal at noon. Had a bit of a delay getting on as the post-sequestration US Customs folks were slow getting everyone off the ship from the week before. Would strongly suggested using the "walk off" provision for disembarkation.
In our room on the Riviera Deck by 1:00 pm. Back of the ship on this deck provides easy access to the adult pool, easy access to the Horizon dining, and no noise from above. Room was clean and our cabin steward, Jorge, was just outstanding.
We had been on the Caribbean Princess in 2006, when it was newer, and were prepared for a fair amount of wear and tear on the ship. It was, however, in good shape.