This was my second time to Osaka and I (we) really enjoyed it both times. Teppan was good the first time and great the second. We had sushi as an appetizer both times (albacore sashimi and the pocket aces) and was not disappointed. Riochi was our cook this time and we was awesome!
I would say for the amount of food you get the prices are very fair. My wife and I shared this time and still had leftovers.