Not a bad place, it's fairly inexpensive with the "all you can eat" to order formula. However, the Sushi selection is meager (especially if you like raw fish) and the fish is obviously frozen.
I know that for $15 I should not have expected a lot, however, I had much better experiences in similar places in California and in Las Vegas.
If what you are into is more cooked standard japanese fare (miso soup, edamame, teriyaki, tempura...) and a bit of Sushi, then you'll like it quite a bit. However, if you are a sushi gourmet, there are better places around.
Service was quick and attentive enough for that kind of place. The restaurant itself is nice.