Its the only liveaboard I've done but I'm booked again this jan27th on the nautilus to socorro. Went last January and was blown away. The Nautilus is fantastic. The crew couldn't have been better. Great divemasters, stewards waiting with hot drinks when you come out of the water, .... The dorm is two bunkbeds, one on each side, but they only put one person in each so its not crowded, plenty of space for your gear, one shared bathroom between 2. Some crew foot traffic in the dorm area, but saves around $500. I'm doing the dorm again. Boat is very spacious and comfortable. Saw lots of mantas up close, silkys, whitetips, silvertips, 2 tigers, tuna, ......... Oh, hammerheads and tons of other fish, lobster, octopus, .... Amazing trip, great boat.