Very nice apartment situated at the top floor of the building, with a nice terrace well equipped (barbecue, deck chair...). The apartment is not at the center of Porto but you can reach the center after 10/15 minutes of walking, so it was not annoying for the visits, and there is also a private parking downstairs.
The lift was not working 24h/24 (mostly during the night, sometimes during the morning or the afternoon without real explication). It was however the only bad point of our stay.
I recommend this apartment !