We stayed in 1010 and loved it. We have stayed in a G on the Mariner. 1010 is twice as large widthwise. It has a double sized balconey. The Bathroom and closet are the same size, but the room feels much more spacious and the couch is a marvelous L shape. I don't really like the basic cabins on the Mariner as they don't seem as well laid out as the Voyager cabins...the dressing table is in a bad spot. We had the chance to move to an aft cabin, which was more expensive, I think, and much preferred the open layout of the penthouse suites.