I've been going to Nakama for years now. I have never thought the hibachi was anything special, especially since you're paying that much for it.
Now onto the sushi, while it isn't fantastic, it is on the better side for Pittsburgh. Definitely not my favorite, but it's consistent and good. Whenever I have a craving and don't want to get all dressed up for the night, Nakama is my go to.
Service is alright here, rarely is it quick, so make sure you have some time to spend. It is definitely pricey, for 4 rolls and 2 beers it was close to $80.