my wife was required to give all her original documents on 21Dec2011 at 12:30pm. each applicant was given a number. as most members are aware, there are many visa applicants that await the interviews. her 'peer group' interview was scheduled at 7:30am on the 22nd.
at 7:30am the applicants were taken to the 5th floor. the numbers given the applicants are chosen at random. maybe it is fortuitous, my wife was one of the last few interviewed. whatever. there were three windows open. my wife's interview was in Chinese. she told me the American that did the interview only asked two, maybe three questions. when did we meet & how many visits we had. he than complimented her on her fine husband as a 'good' man.
I do not know if this is the standard fare of interview nowadays. it was easy considering all our original documents that were submitted the 21st and all copies of communication, photos, whatnot, my wife carried on her person the interview day. I suppose it is better to overwhelm than underwhelm.
it is my impression that all original documents that were submitted the previous day are probably reviewed by a Chinese national for accuracy against all the documents I had electronically transmitted to the NVC during the visa review. that is my assumption only.
Anyway, that is my Guangzhou story. I wish you all successes!