Xianfoods is far from an example you want. It is a large space that is relatively clean and has a strong brand in its area in an absolutely prime location for its food.

You'll more likely want one of the tens of hole in the wall spots around xianfoods that have no website, no name, not even a Yelp or a Google map indicator. Things that serve steamed buns out on the street or shops that are little more that hallways to order food and leave.