Also I'm interested if the shared bandwidth offers are suitable or often overbooked.
They are of course oversold, otherwise they could not be so cheaply priced in Asia.
Rule of thumb is you get more "dedicated" (as in more shared bw for less users) at 10Mbit shared ports than at 100Mbit.
HKNet is a very nice Network, especially for local peering.
NTT is good for foreign traffic but misses a few peers in HK, Pacnet is "the allrounder" and Sunnyvision is "the cheap one".
foreigner can not get ICP license, because you do not have Citizen id card of China.or The company business license
if you do not host website, it's Ok, if you want do, never come to China.