Xtreme Sushi will not be the best sushi you've ever had, but it will be the most authentic for a reasonable price. The chefs are creative and the chef-approved fish/ingredients are of good, consistent quality. Service is friendly as well. Take advantage of their all-u-can-eat lunch and dinner specials ($20 & $26, respectively) which, unlike other sushi places, includes all but 2 or 3 items on the entire menu. I've been to many sushi places in Vegas that have similar prices (although often higher prices) and Xtreme has the best bang for the buck by far. Some may disagree, but it's definitely worth checking out for yourself if you're looking for a good local sushi restaurant.