We have gone twice specifically for their teppanyaki, although on our last visit we were a little disappointed. This is the fifth different restaurant we have tried, so we are starting to get a feel for teppanyaki. I thought it compared relatively poor to the others, although we have been very pleased with most of our experiences. Even though it wasn't our favorite place I still enjoyed the food. Of course I didn't think that the food was as good as we have had at a place like Benihana, but it was not too far behind.
What really made this place worse than the others though was the service. Pay attention to that, because most Japanese restaurants have truly exceptional service. This was the first place we have visited yet to defy Japanese standards. On the second visit in particular we had a reservation, but ended up waiting 50 minutes for our chef after we had been seated, and it wasn't that busy. It was very peculiar as I can't recall ever waiting much longer after the appetizers have been served during any other teppanyaki experience.
We also had issues getting refills. At other Japanese restaurants waiters often bring you more refills than you even need, which really makes the customer feel appreciated. Our waitress here was missing in action quite often when we needed her.
I will still give it a slightly above average rating for the good food, but please beware that the service here is not what you usually see from a Japanese restaurant. If that kind of thing doesn't bother you and you are just looking for some good food than Ooka Hibachi can probably meet your needs. As for me I don't think I will be returning. I'd rather drive the extra miles to Benihana than come back here.