In general, Chinese think blacks are poor and uneducated compared to them and especially compared to white people, but more sophisticated Chinese might see a black American are slightly higher status.
I have had Chinese change their opinion of me in mid-conversation when I was in a group with white ex-pats.
The economy is pretty good there, a lot of large companies have moved relocated there from other locales.
It's better for young people who want experience and don't mind not making a lot of money.
There is some discrimination at these schools, but also it depends on how desperate they are.