Works well, even in China. But even the one day free trial only lasted 20, maybe 21 hrs.
If you're addicted to Facebook or YouTube or you can't go without Google, it might be worth signing up for if you're in China for a while.
If you're in China any length of time you need to be switching to wechat which is what all the Chinese use.
You won't need a VPN for that and you'll start to integrate.