The sushi is well prepared and there's a pretty wide variety. I was especially impressed that they had hand rolls and even sashimi; they could have cheaped out by only serving various rolls with tons of rice and little filling, like the other Chinese buffet places in the area do.
The "hot" buffet is nothing special, but they serve the staples. They also have a Mongolian grill, and that's a better bet if you're looking for cooked fare. But the sushi is definitely the star here.
The prices are very reasonable, actually a little cheaper than the average Pittsburgh buffet, which is impressive when you consider how much good sushi you can get for your money.