This was my 5th cruise with RSSC, so I already knew I would like it. Here are some of the things I like about it. The Mariner is just the right size-small enough to go places others can't and large enough to have multiple places to dine and hang out. I like that it is really all inclusive, once on the ship I don't have to spend another dime if I don't want to. I like that even the lowest tier suites are large by the industry standard and are very comfortable and include a veranda. I like that it is generally all adult. On this cruise there were a few children, but they had special programs for them. There are no mandatory formal nights or assigned meal times. They generally offer a good selection of shore excursions, many of which included for free. The specialty restaurants are good, but the food in the main dining room is always very good as well.