This is perhaps Toronto's only northern Vietnamese cuisine restaurant (with another location in Leslieville opening later this summer). The food is different than other run-oft-the-mill Vietnamese restaurants in Toronto, which predominately serve more southern style cuisine.
I believe this is the only place in Toronto where you can get "cha ca", the famous fried fish seasoned with butter and dill atop a generous portion of vermicelli noodles. This is the signature dish. Locals will eat it with the "purple stuff", which is fermented shrimp paste that smells absolutely rancid, but tastes surprisingly delicious. American GI's used to call it "Vietnamese tear gas".
For pho lovers - I find the broth a little less flavorful than the southern style, but it is excellent regardless.
Service is very prompt and the staff is knowledgeable, much better than you would get at most other Vietnamese restaurants in the city. The chefs can often cater to the taste of each person, be it adding more dill to requesting a certain Vietnamese dish that isn't on the menu.
Prices are about $1 more per dish compared to the regular Viet joints, but it is easily worth the extra money -- about $8-15 per person. Oh yeah, they take credit cards!!!