This is probably in my top 5 for favorite restaurants of Madison. And I'll tell you why.
Appetizers
Spring rolls are great. Fresh and tasty. I am a total crab rangoon snob and they make excellent crab rangoon. I've gotten pot stickers a bunch of times there and its always really good. Only had the Kim Chee once. I'm not into spicy foods so I didn't like it but the person I was with who DID like spicy foods told me it was good Kim Chee.
Soup
Always really flavorful. Good broth to veggie/meat ratios. You basically can't go wrong with any of the soups.
Noodles
Stir fry can be a little greasy but oh MAN. There is like... a smoke flavor? I'm not sure what it is. But its delicious. Pad Thai is good.
Vegetarian options
I was a vegetarian for two years and I had no problems finding things to eat here.
All in all. I really think Wah Kee is one of the best restaurants in the area. And absolutely affordable.