I'm planning a quick trip to Shanghai in a few months and learned that Shanghai offers a visa free, 72 hour transit. According to reports, you don't need to apply for a visa prior to arrival and all you have to do is get an immigration stamp upon arrival to the airport. My visit will be 60 hours total and I will be connecting from Seoul and transiting to Bangkok two days later. I only plan to tool around Shanghai during my visit. Just wondering if anyone has taken advantage of this visa free transit and if it worked as smoothly as I hope it to be. Any personal advice or experiences will be greatly appreciated. Thanks.