This place hands down has the best miso soup I've ever had in Toronto. They also have really good lunch specials here. Definitely the best bang for your buck here is the Combo I. You get enough food for 1.5~2 meals for the price of one.
Ever since I've been going there, the service has been fast and fairly decent too. Both water and tea are free and they're not stingy with their refills.
In terms of food, Sushi Inn has really good tempura. Their sushi is fairly average but well-portioned. Their udon could use some work.
Overall good place, and great prices for a location like the heart of yorkville. Have been a regular since 2014 and plan to keep it going strong!