The appartment is great, ther is everythin you'll need, and it is very well located (15 minutes walk to the center, 15 minutes with the metro to the Sagrada familia, 15 minutes with the funicular to Montjuic, 20 minutes by bus to the beach).
Francisco was very nice and easy to communicate with.
The only thing you nedd to know is that there is noise in the street, well into the night, being Barcelona. But we had a great time.