Boyfriend comes here all the time with his buddies after Japanese class, and it sucks having to hear all the fun I'm missing out on when I'm all the way across the country for school. But I went with him for the first time recently, and it was pretty darn good. I think the bento boxes are pretty much the way to go here. The other review has a good description of the varieties and the items included, although I think they've replaced chicken katsu with pork katsu and salmon teriyaki with fried fish. And chicken teriyaki is the only $5.00 bento.
All the food was pretty good, and it's definitely enough to fill you up. The California roll lacked a little though, and the random potato salad reminded me of Aloha Kitchen. Everything else wasn't too shabby. Boyfriend said he got the shrimp tempura bowl the last time he went. He said it was alright, but he'll be sticking with the bentos from now on. Save your shrimp tempura bowl cravings for Ichiza.
The Japanese girls are cute and nice, haha. The place itself doesn't have a very Japanese-like feel (more like Aloha Kitchen again), but it's clean with nice music. I think you'll find two groups of people here: UNLV kids or business folks, all out for a quick lunch.