This is by far my favorite sushi restaurant in Nevada.  The fish is always the freshest.  The food is just top of the line.  The service is always very good as well.  I remember reading that Osaka in Henderson was on a list of the 50 best sushi restaurants in the world...and the other 49 were in Japan, so that kind of says something right there.  I highly recommend this location.  I was not as crazy about the other locations as they didn't have the same awesome quality of fish and pleasant atmosphere.