I've done 5 in total. I live in Beijing, so it's right underneath the watchful eye of the Communist Party. It's not 'free' free but outside of the Great Firewal

I've done 5 in total. I live in Beijing, so it's right underneath the watchful eye of the Communist Party. It's not 'free' free but outside of the Great Firewall (nuisance), and various visa and registration related shenanigans (fairly lax), I haven't gotten into situations where I really felt the iron grip of the government.