We had really pleasant stay at Susana and Alfredos apartment. It is situated close to the center, so we did not need car to move around Porto. The communication has been quick and very helpful. Susana meat us at the airport, though the initial plan was, to take metro. She also bought us some "first aid" breakfast kit, which was very helpful. Appartment is fully equipped and nice. I would definitely stay there again, if I happend to visit Porto!