It works very VERY WELL!
No worry about Google, WhatsApp, VPN .
If there's some 100 mins of in/out calls, that will make it the best choice.
Delivery is fast. Will try to use it during my trip this month.
Self collect from their office as leaving in a few days, very quick as sim cards already prepared beforehand. Thoughtful free gift of pin and sim card holder.
【China Prepaid SIM Card/ Acess to Google and Facebook】7/30 Days 2GB/4GB 4G LTE Data For Travellers