I will be in Beijing on 3 Sep for a week. Where to go for good & cheap food?

U are recommended to go to the local Wangfujing pedestrian or Huguosi Snack Street to find authentic and cheap local food. You can find cheap ducks in some small restaurants, but it's said that the ducks there are in poor quality. Since you will take a trip in BJ, why not taste the authentic duck with perfect flavor and quality? It can be found at famous Quan Ju De and Pian Yi Fang.