We had a great stay in Silvia's apartment. Check in was easy, and she allowed us to check in a bit early, which was great so we had somewhere to go upon arrival from the airport. The apartment is in a great location in Gracia, with easy access to the city via the Fontana metro stop as others have mentioned. It's within easy walking distance to so many nice restaurants, shops and bars that you could easily spend an entire trip just in this neighborhood. The terrace was by far our favorite feature of the apartment, it's spacious and relaxing and a great place to have breakfast or a glass of wine after a day out in the city. I would definitely recommend this apartment as a base for exploring the city - it's out of the tourist center, but you don't miss any convenience or access.