We were only in Toronto for 2 days, and found this place on Yelp.
It felt like a true hidden gem (hidden, but well endorsed by yelp of course) and, I don't say this lightly, I think it was the best Japanese food I've had outside Japan.
Vegetable tempura was perfectly crispy and light with a good assortment of vegetables. Sushi was both perfectly fresh and well crafted. My husband was also really pleased with his Tonkatsu.