Again, full caveat that I have not purchased or sold real estate in China. I just live here and read/hear about this stuff.
A lot of my students' parents own property in the US. I think many of them buy as a way to get their money out of China, and some think it will help the immigration process if they choose to relocate in the future (it probably won't).
I would say buyers in the big Tier One cities (Shanghai, Beijing, even Hangzhou and Shenzhen) are probably a bit more sophisticated investors and will have been around the block and know that they're doing at least a bit more in terms of property investment. The niveau riche in up and coming second and third tier cities might be more likely buyers. In these areas a lot of people have been getting rich quick but often have very little education, let alone financial education, about what to do with their money. These are the type of people who have a lot of extra cash they want to get out of the country fast, but probably don't know more sophisticated alternatives to "I guess I'll buy a house in the US."
If you do find a Chinese buyer I advise you to watch yourself and make sure you get as much as possible in writing and everything is handled extremely legally. Rule of law here can be a bit... wavy... at times, he who has the money that greases the wheels makes the rules, and mainland buyers may expect things to work the same way in the US.