Artur's place is conveniently located close to the city center. Just 2-3 Metro stop away to most tourist locations. Also, it was convenient to reach from Airport and suburb mall (local haunt). Artur kindly offerred his assistance whenever you might need some help or explanation on how things work in his city. The facilities in the house are sufficient for your stay, everything was in good working order. I'd highly recommend it if you're looking for a place to stay for a couple days in Porto.