This is some of my favorite food in the city. Don't be put off by the ambiance - the food is spectacular. This beats heavy hitters like Golden Turtle hands down.
Protip: The Queen location has better ambiance, but the Gerrard location has consistently tastier food.
Prices are low, particularly for drinks - wine is filled to the top of the glass and it's only five bucks, bottles of domestic beer are THREE bucks!.
Start with the mussels. They are huge and so tasty (save the broth!) and enough for 2-3 to share.
As for mains, I recommend any of the vermicelli dishes. I don't eat meat, but you can substitute any meat with perfectly done tofu and a spring roll.
The pho is great too, but I'm less of a fan, so see other reviews for expert opinions.