Isabel was, without a doubt, the most helpful, accommodating, and gracious Airbnb hostess that we've ever had. She shared some great recommendations with us, helped us with reservations, checked in our comfort and satisfaction throughout our stay, and was simply delightful to interact with. Her place is perfectly located within the Ribeira district; all of the sites within central Porto are walkable if you are in reasonable physical condition (there are hills!). The apartment was spotlessly clean, Isable met us when we arrived, and even provided us with our first sampling of port wine upon our arrival! Assuming we make it back to Porto at some place, we will definitely be renting this place!