Whenever I go downtown for food, I feel like passing up an opportunity to go to Hua Sang is a crime. I mainly go for their Cantonese chow mein, black bean flat rice noodles and hot and sour soup. The hot and sour soup is made unlike any other place I've been to. If you like a flavourful hot and sour with a little kick to it, this is the right place. It's not too tart or vinegar-y. You'll find that Way-Sang (the restaurant upstairs) makes their hot and sour a bit more red. I love both but they each have their own unique flavour.
I feel like the service has improved over the years. There's an older waitress who is kind of funny and will interact with you. I always enjoy eating here