Carlos´ house is perfect. It´s very well located in Oporto and you really have everything you need in it. I really can´t think of anything missing. We´ve even had some oporto wine on our reception!
It´s spacious and full of light, noise isolated and really close to every attraction in oporto and little great places to eat.
Carlos is very kind, he helps great information about oporto, and provides plenty of guides and books about the city.
In summary, would absolutely go back there when back in oporto.