I generally advise all Vegas visitors not to eat sushi on the strip because it is so expensive. Just a few miles off the strip, you can get top quality nigiri served edomae style for a fraction of the cost. But if I have to have Japanese cuisine on the Strip, I always pick Blue Ribbon.
I've always found the sushi quality to be high, and appreciate they have a wide selection of fish. Bonus points for chawanmushi on the menu. Oxtail fried rice is to die for. Fried chicken (not kidding) is a must-try. Solid sake list as well. There's likely something to make almost everyone in your party happy.
Service can get a bit iffy when they're slammed, but otherwise attentive and always been friendly in my experience.