Poor management- They are an international company when approaching business, but when problem happens, fight between offices forever and everyone starts to back up.
Not fair environment- They used to offer different commission structures for different offices(not sure now) so it discourages people. Also, they pay better for Brits expats than others or prompt them quicker than locals.
No HR in China - a finance lady in charge of HR work there, very unprofessional and unfriendly. The ladies work under her left very quickly always.
After the company acquisition, there are many good networkers managers left and I'm sure there must a reason for that.