I used to travel to the PRC on business a few times a year, usually spending 2-3 weeks there at a time, more often than not away from the big, mainstream cities tourists visit. That led to me eating in folks' homes, or with the factory workers I was visiting.
For the most part, I have no idea what I was eating - except for duck - but it was generally SO good, compared to the stuff I've gotten at most Chinese restaurants in the US, that I rarely order it.