The flat from Marc was great!! The location is perfect for a citytrip, we loved to see the Sagarada Familia to every night and daytime!! :-) be prepared for the wow-effect, when you arrive with the metro. The metro is also very close to the apartment.
The flat was huge, perfectly clean, with airconditioning and enough towels. The only thing that you may have to know is, that it is very busy in the night. But with a closed window it is quiet and it don‘t boughtered me anyways. :) and it can by a little bit smelly in the apartment, but this is normal for a flat in the south of europe and it disappeared when you open the window.
Our stay was great and i would definetley recomennd it!