Since I basically only eat Sushi in Las Vegas I have a pretty strict policy on rating. Osaka had some pretty harsh reviews but I didn't notice any of the flaws mentioned by other Yelpers.
We tried the Avatar roll, Tempura roll, and 007 roll. All three had shrimp tempura in some capacity and they were all fairly tasty. The tempura roll was definitely the most interesting because it was a normal roll that was actually tempura battered. It was definitely something interesting that I've never had.
The service was a bit lacking but not enough to mark it down a star. The prices were fairly standard to a bit high but nothing that would turn me off going here for some above average sushi. At least it was fresh, right?