Zhiang's place is helpfully located near the main train station. Since we were coming in late, this was a great location for us. It's a little bit of a walk to the historic downtown, but it gave us a nice opportunity to see some of Porto. Zhiang and Adam were very responsive to all our messages and even though we didn't see them on our short stay, they made our trip to Porto smooth and hassle free. Our room has basic, but it was clean and had everything we needed. Thanks for hosting us.