Nikko is a great sushi place! I came here only two days after I had moved to Charlotte, and was surprised to see how busy and bumpin it was on a Thursday night around 7. Don't let the look of it from the outside fool you, I was worried we'd have to wait awhile, but the restaurant is huge and a lot of people sit up at the bar, so there was no wait for us at all!
Very good selection of sushi, and our waiter was very helpful (even though she said it was only her first week). The rolls were tight and very tasty. Vegetable tempura was a good start.
Prices not bad, it's sushi after all, cheap sushi scares me anyway :-)