The service is a bit slow, but mgr and servers work with you (to get your group a table) when you make that last minute decision to go out for Hibatchi/Teppanyaki.
Food is good and don't be afraid to customize your Hibatchi/Teppanyaki items; the servers and chefs are accommodating. The place could use a remodel and a consistently & professionally staffed (and set-up) bar.
One of our recent visits; we were using a Groupon deal on a Sunday evening. Turns out, Osaka had some Sunday evening specials and the Groupon would have been better utilized on a different day.