Casa Valeta and Martin really represent the best of AirB&B's global experience. The unit was exactly as described and in a great location near the main crossroads of Passeig de Gracia and Avenida Diagonal. There are many close-by tasty restaurants that Martin pointed out and high-end shopping nearby. We walked from the apartment to Park Guell, Sagrada Familia and the Gothic Quarter and the metro stop is <5min away. Martin was generous with his time and great pointers-- do make sure to explore the family feel of Gracia in addition to the more touristy sites!