I'm sorry - it's got nothing to do with aviation. Apparently it's one of those sleazy late-nite hanky panky activities that some people get up to in Shanghai.
To get back to the point, there is NO good thing about this company as far as flying goes. About the only thing that might entice one to take a longer look at it is the fact that you can have lots of days OFF in Shanghai, if you have a special reason for wanting to be there on a more extended basis.
I shan't elaborate further on what others have already so eloquently said. Bottom line - go at your own risk