What a great stay in Barcelona! We had so much fun and even though we spend most of our time outside thanks to great weather, it felt good coming "home".
The apartment was exactly what we had hoped for and its location was just perfect: not far from the airport and very close to the metro station, a small supermarket right next door and a good bakery (with terrace!) on the other side of the main street.
We were 4 (adults) and used the sofa in the living room as second bed. The bathroom, as well as all other rooms, was very clean and the kitchen is fully equiped. We sometimes heard noise from neighbours but nothing from the streets which is quite surprising in such a big city. The little terrace of the apartment turned out to be our best friend.
Fernando welcomed us with breakfast for the next morning and communicating with him was easy since he is was very available.
I honestly can't think of anything negative, it is a great apartment.