Not much to comment on the other than the technology woes. I made a day trip to Shenzhen from Hong Kong last July. It was my second time in China last year, but

Not much to comment on the other than the technology woes. I made a day trip to Shenzhen from Hong Kong last July. It was my second time in China last year, but first time to Shenzhen. So I was very aware of all of the "GFW" issues. I used my Pixel with VyprVPN installed prior to with no issues. Also I always downloading maps and languages with keyboards anytime I travel in case my connection is not 100%. Though I had a strong signal all around Shenzhen. I did run into some trouble finding an ATM that accepted my card. I did not want to trade a lot of currency since it was only a day trip, and not knowing if I would buy anything at all, or how much. There were many ATM's, though it is hard to find anywhere in China banks that are compatible with American cards. Not impossible, just far fewer than other countries. WeChat is a must all over China. They use it for everything! Though I haven't figured out how to get money onto it to use the pay feature, which they love to use. I think you have to have a China Bank account to tie it to your WeChat, or have someone with CNY who gives/transfer it to you from their account.