We just spent a nice little vacation in Be Barcelona's apartment. Absolutely best thing about this flat is the location: it's in the middle of the center and near by the interesting streets, sights and restaurants. You can basically walk everywhere in 10-15 minutes. We took a taxi from the airport (20 min & about 30-35 euros). The apartment is in the 4th floor (or was it 5th) and very quiet. There's plenty of room and beds for 6 people so this is a good choice for family or group of friends. There's a good kitchen for cooking but we ate almost every day in the restaurants because there's so many cozy places nearby. The apartment was clean and tidy, and it was easy to communicate with the landlord. Highly recommend!