Kenzo has pretty good Ramen. It`s no Momofuku so if you hate that place, maybe you`ll love it here and vice versa. However, the service is pretty terrible. The place is usually way too busy for one waitress (even though it is quite small) and she (usually a she) is always super stressed. Super stressed = rude.
I usually order the King of Kings and it's generally pretty good. Since the King of Kings is in the menu, I never have a problem getting it. But if you try to order a small dish or appetizer, the waitress usually gives some convoluted story about how magnetic forces aren't aligned and how it isn't available. There aren't too many Ramen places in Toronto so when I need a fix, I go here.
In the restaurant, Kenzo has a review from The Toronto Star posted on the wall. What is quite funny is that the review isn't very flattering. It says that the wait is long and broth is bland. I guess the owner of Kenzo takes the approach of "bad news is better than no news".
http://www.thestar.com/entertainment/DiningOut/article/265040