It's essentially all you can eat - hotpot, sushi, soup, fried items, sodas and ice cream. Pick you soup base and start grabbing little plates of food from the conveyer belt. If you don't see something you want, just ask. The waiter/waitress will bring you anything they serve.
You get about an hour or so. (I forgot exactly how much time) but you eat till you don't want to anymore. Set price. is about 300baht. Not to bad for decent quality restaurant food.
You can find this chain in most every mall in Bangkok too. Definitely recommend as it's a nice break from all the street food of Thailand. Mostly locals inside eating.
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