Just returned from a cruise on the Mariner last Sunday. Overall, not a bad trip, but still a Carnival fan over RCI. Food, entertainment and service better on Carnival. I was surprised to see that the entertainment was so very amatuerish, in my opinion. I will definitely give it to RCI for the beauty of the ship and the cleanliness. I did not particularly care for Coco Cay - somewhat dumpy, in my opinion. Finally, waiting to drop off your luggage at the port, prior to embarkation, took over 1 hour. They claimed that immigration cleared the ship, prior to our trip, very late. However, there were probably 10 porters assisting at the baggage drop-off which is the most likely cause for this huge delay. I would sail on this ship again and overall enjoyed it, but I do have to say Carnival provides a better experience. If you have any specific questions, I'll be glad to answer them.