Most of my experience is in SW China, Kunming and Chengdu. It takes a little longer for things to trickle down here. There are many shops that display the visa/mastercard logos but then when you try to use them they say, only China issued visa/mastercard. That is why I am hoping this Discover/Unionpay deal will work, since they are supposed to be the same network. I have seen the Unionpay logo a lot of places and think it may be worth a try. I do realize it may take some convincing.