We recommend Sonia's flat. Good located, 7-10 minutes walk to the metro station. The apararment's area is very interesting - Blai street with many cafes and tapas, Montjuic hill with wonderful view of the city and a port. Sonia was very helpful. We came to Barcelona with children, one of them was 10 months old and Sonia brought us a cot and a chair for the baby. Flat is on the third floor, without lift, so it was inconvenient for us. We recommend Sonia's apartment for family with older children, and especially for a group of friends.