Osaka was an okay spot for me! I came here for a Father's Day dinner for my dad. I got the Filet Mignon and Shrimp combo, while my dad got the Ribeye and Shrimp. The chef was very nice and cooked well. Their portions aren't the largest here, but it's better quality than some competitors. I don't feel it was seasoned as great as others I have tried, and service wasn't all that great. The restaurant itself is rather humid and doesn't seem that clean.
Aside from that, I still think the food was delicious and it was a fun experience overall! Without the Groupon deal I purchased, I probably wouldn't come back for it. You can get delicious food for cheaper at other Hibachi spots in Vegas!