I've been to this restaurant 3 times since their opening mid-August and I really can't complain about the food. It's flavorful and I've enjoyed every bite. Granted that their ramen isn't as authentic as I'd like it to be but like one reviewer said, this is Cleveland and it's definitely better than what is currently being offered around town.
The reason for the 4 stars is their service (though the servers are all really nice). They just opened so I'm giving them time to iron out their kinks but I hope to God they smooth it out soon. I went to lunch with a friend today and after we were seated, it took the server 30 minutes to come back to us to get our orders. We had to flag her down repeatedly before she finally saw us and I could tell that she had forgotten that she had a table waiting for their orders to be taken.
So by all means, make your way down to the restaurant. the food really is good but if you come during the busy times, be prepared to wait. I hope you figure out your service dilemma, ninja kitchen, because you have a good thing going there.