I have a comment about ACH in GUZ. I went a couple of Fridays ago on June 1. I had called the Thurs. before to make sure it was on, arrived at 1:30 pm & saw a sign on the rope blocking my way on the 4th fl dated May 31st, saying that it was cancelled! So, after a bit of complaining, I decided to not just waste my trip from Shenzhen and go check out Mr. Yang's and Mr. Xie's hostels for our interview. All the while, I kept trying to call Amer Citizens Services line to try to speak to someone who could give me some semblance of an explanation, at around 2:40pm, I got someone & they told me it was on and I missed it. My advise: stay there no matter what anyone tells you and complain. Maybe call them Friday morning also.