There's always a fine line with hole in the wall restaurants. Will it be good? Inexpensive? "Authentic"? Clean (relatively speaking of course) Yes, yes, yes, more or less.
They advertise homemade noodles and dumplings, and the product lives up to that. The wonton stock is flavourful and light on the MSG. I would highly recommend any of the wonton noodle dishes. Dim sum portions are more modest than any big resto dim sum you might expect, but you can take heart that it really was handmade. Any noodle dishes with beef flank also recommended.
Typically I get hot pot with some combination of Chinese sausage, chicken, mushrooms; this time I ordered the salted fish black bean hot pot, which is okay but not as great as the other choices.
Don't take your first date here, wait until at least date five. Don't take her parents if you're hoping to impress. You've got a friend who loves discovering great food off the beaten path, take them here.