I went there a few weeks ago, in the mood for hot soup. The waitress sat the two of us by the window (coldest spot in the restaurant with bad red glare from the neon light) and gave us the all-you-can-eat menus. I hadn't realized it was that kind of restaurant, but just went with it.
Service: ok. She brought everything we ordered (in waves) and took a second order. The place was quite busy.
Quality: the white tuna and unagi were the best. The hand rolls were ok but had too much mayo. The maki was ok. Other sashimi was sub-par.
When we paid up front I saw the regular menus. I would have preferred to order from there. The waitress and chefs were all speaking Chinese.
Overall: Too expensive for what it is. Wouldn't go back for all-you-can-eat. Might try it again from the regular menu, only because it's walking distance from home.