The appartment is located in a very central part of the city. Close to a metro station and it takes just a few minutes, by foot, into the inner city and to the Douro river. Since it is in a side street, which is also a one way, it is a rather quiet place. Supermarket and bakery are right around the corner. Very clean. The check-in and check-out worked really well. Questions were always answered very quickly, usually within the first few minutes. Can wholeheartedly recommend staying in the map house when visiting Porto.