Saturn,
I fly in china on a daily basis , and like eagle says, stick to standard atc, some airports still use QFE however china is in the proces of goiing QNH.
there is alot of procedureflying ie. no radarvectors although this may vary at airports.
Eagle is right about PEK and SHA, day/night always something to do.
the people are very friendly and helpful. and do not care much about nationality but more about personality..
if haev more questions/want more info, Email me.
S.