I was in Barcelona for the Primavera Sound festival and Monica's apartment was just perfect. It's only a minute away from a subway station, 10 minutes from a lovely beach and some 20 minutes on foot from the Parc del Fórum where the festival was held.
The apartment is beautiful and exceptionally clean. The bedroom is small but quite functional, with a desk to place one's laptop on and some drawers etc. to put your stuff in.
Finally, Monica is a very welcoming and friendly host, who went to great lengths to make my stay comfortable: she left me breakfast in the morning, gave me reccommendations for restaurants etc.