In the city I live in, all restaurants have a "safety and cleanliness" rating. An "A" rating is the highest rating, followed by "B" and "C". Restaurants which get an "A" get a nice, big smiley face, B's get a face with mouth drawn with a straight-edge, and C's get an ugly frown, including angry eyebrows. Even though red is the lucky color in China, as well as, the color of the national flag, the C face is bright red.
The first one of these I ever saw was a C rating. I was in the middle of eating when I noticed it. I looked around and everything seemed clean enough, so I kept eating. I have seen about 6 or 7 C restaurants so far and 2 B restaurants. So far, however, I have only come across one A restaurant, the local KFC. As far as I know, where I live there are two genuine western restaurants: KFC and McDonald's and I have had no need to go into the McDonald's just yet.
The KFC I have gone to once: for coffee. After my coffee was poured and handed to me, the cashier apologized for there being no cream or sugar. I saw that there was a milk dispenser next to the coffee machine and asked if they could squirt a tiny bit of milk into my coffee. The cashier said she would have to ask and went and chatted with a tiny young man who appeared to be in his early-twenties. The cashier returned to tell me that it was not possible for them to add a tiny bit of milk to my coffee. After a couple attempts to reason with her, I realized it was futile and left.
Despite KFC's "A" rating, I will probably not go eat there until I am seriously craving good ol' american food. There are plenty of knock-off KFCs here and a good number of restaurants calling themselves "western", though I have found that most are nowhere near authentic. It is a similar situation with the Chinese restaurants in the U.S. and Europe. Those who have been to China can tell you that Westernized Chinese food is significantly different. Not only is the flavor completely different, American Chinese has almost taken on a culture of its own. For example, in China you will have a heck of a time trying to get someone to understand what a fortune cookie is, which is something you never see here.
There is a big fancy-looking restaurant right across the street from KFC. Its sign declares, in large neon letters, that it is an authentic restaurant. I am a bit skeptical, however, because, underneath the large neon letters it says, in English, "Western Boofsteock". Authentic or not, I am not interested in trying their Boofsteock. For the time being, I will enjoy the many delicious Chinese restaurants in the area. The "C" restaurants have been, so far, the tastiest ones around and the low ratings have yet to deter me. The KFC may be clean and safe, but it doesn't match your average local Chinese restaurant in taste and customer service.

