Our days in Porto were great. The house/flat is lovely and clean. João and his wife are friendly and kind; they collect and dropped us in the airport; and were available to solve anything we needed. The distance from the touristic area is a point to be considered, but the bus is just in the corner and take you everywhere. The house is rented by rooms, so maybe there are other people to share the space. We rented two rooms and were there alone during our stay.