The apartment was as depicted in the photos, clean and airy, with lots of sunshine. It is also very well located too as you can walk from the metro station that is direct to the airport, and it is also just a few minutes walk away from city center. The only downside for us was that the water pressure in the shower was a bit low , and in the ad it is indicated that soap was provided, but it wasn't quite enough for two girls for 4 nights, don't forget to bring our own! Also it is highly recommended to keep the windows closed at night as the street is very tiny and one small noise (car, people talking in the street, birds!!) can sound very loud and disturbing at night if you leave the windows open.
We enjoyed our stay at Diogo and Christiana's and would recommend it for other people visiting Porto.