I lived in Japan for 5 years and can honestly say the food offered here is as authentic as it gets in Toronto. Others who say this matches other izakaya's in the city are flat out wrong in my humble opinion. (although I have not yet been to Guu up the street).
The food here is unique, and DELICIOUS! It is one place in the city I am eager to 'try new dishes' and my friends always ask to go here when they come downtown to my place, from out in the 'burbs.
Love the ice swirl on top of my beer. Cute. Very Japanese-y. :)