A Chinatown gem, but definitely bring cash in CDN if you can. I'm sure they will accept dollars, but you'll have to pay the 1:1 conversion.
It's really tough to pay with a card. They have machines, but most debit cards even aren't accepted, especially if US based.
...The food, though!
I had the soupy dumplings - D02 -- definitely the winner on the menu and one of the only places I know in Toronto with delightful soup dumplings. Each bite is comfortable heaven in your mouth. The pork bun / wrap deserves a mention as well. I think it's F20 and it's freaking amazing. Like a crepe rolled with beef. The F03 stuffed fresh veggies are AOK, definitely fresh and tasty...but the standout was F20 and D02.
I had the Zha Jiang noodles too and the noodles were delightful along with the pork sauce - although the pork sauce is served cold while the noodles are lukewarm and it makes for a strange combo, but still delicious. If I were coming here again though, I'd order the D02 (maybe 2 orders even) and the pork wrap, which I think is F20. So good.
Service can be awkward with a potential language barrier, but it works out and that's how you know the food is legit!