The attic is close to the Sagrada Familia (you can see the towers form the balcony). It takes approx. 20 minutes by tube to get to Barcelona downtown and there are several tube stations near the house, which is also very silent and relatively chilly during summer.
The host, Frederic, was vey welcoming, always ready to help and very precise and fast when answering our questions and emails.
The apartment is as sweet as it's depicted in the photos, a perfect place for a couple. The best part is by far the view from the fully furnished terrace . Kitchen and bathroom too are fully equipped. Supermarkets, cafès, take away restaurants and pharmacies are all within walking distance from the apartment.
I totally recommend this place, especially if you're looking for a special spot in Barcellona, peaceful, yet very close to all destinations.