Yelpers come through again. I went here on your recommendations and was not disappointed. We shared a Kaigen sampler appetizer plate, which was really freaking good. After that came a huge bowl of Kaigen ramen, which, while not incredible, was well worth the money paid, and that's important when it comes to dining in Vegas.
Most of the clientele was Asian, and all the waitresses spoke Japanese. I don't, but if you do I'm sure you can make good use of it here. Well worth finding this place.