Best authentic Chinese restaurant in Chicago

Lao Sze Chuan in "New" China Town
spicy, tasty, like in Hong Kong, no Chow Mein or Moo Goo Gy Pan, many Chinese diners, price is reasonable too

I realize it was on "Check Please!" recently, but a quick whirl with the search function would have shown you that no fewer than 93 pre-existing threads mention Lao Sze Chuan.