Went there for sushi the other night, and have to say I didn't think it was great.
First, the rice was waaayyy too sweet for my tastes. Obviously sushi includes seasoned rice. But this stuff tasted like candy.
Second, the soup was just average. I was hoping for something better.
Third, I felt the size of the sushi was, overall, just average.
Sakura still ranks supreme, IMHO, for sushi in H-town.
However, Nikkos did have tons of hibachi tables. So hibachi fans might find it preferable to the other Japanese restaurants in town, which often have long waits for a table.
