Actually my review below is for Mario's another apartment with the following link <> The location is great,close to the center and has direct metro line (E) to the airport. The apartment is new and clean, spacious and with a balcony. Mario is a very friendly and warm host. He always replies instantly. He waited me outside the metro station despite of the rain. He offers a personalized map of Porto which is really unique and helpful. The application on smartphone of the map and guide is being developed right now. Too cool! I am so happy that I can meet such creative person like him. It's maybe one of the best things of using Airbnb- to meet great person! Wish you huge success with your App and merry Christmas to you and your family!