I would have give MOzen four stars for a snafu in the service...had it not been New Years Eve when everything is crazy.  We waited about 40 minutes before a server brought by the small, obligatory bread basket, and then 10 minutes later some of the sushi dishes we had ordered as appetizers, finally began to arrive.  They delivered two at once, one of which we didn't recall ordering.  When we were barely getting started on the sushi, the main course arrived.  I sent that back to the kitchen to keep warm while we hurriedly ate what was in front of us.  We were surprised when the correct sushi order arrived, followed a few minutes later by the main entrees, again.  We never got to finish the late-delivered sushi, and frankly, three sushi orders were more than we intended to eat.  The restaurant manager came by to offer us a glass of champagne, on the house, but we were already drinking a very good cabernet, so we declined,\n\nThe good part is that everything we tried, was excellent!  The sushi was very good.  We had yellow tail and yellow tail sushi rolls and also the \"caterpillar\" roll.  (Note:  the best yellow tail in town is at SoHo, a small local west end eatery).  For entrees, we tried the butter chicken in curry sauce, served with basmati rice and freshly made nan.  It was spicy and hauntingly flavorful and well-prepared. The second entree was the lamb shank also in a curry sauce and the same side dishes, but had an entirely different curry flavor:  savory, tender and delicious.  We plan to return when the restaurant is in a less hectic setting, but overall, it was one of the better-tasting meals we had at a Las Vegas resort hotel.