The apartment was really great. Just perfect for the four of us (2 adults and two 12 year olds). It is very central, you can reach it easily by metro. From the nice little balcony you can see the Sagrada Familia and some shops, supermarket, bakery and restaurants are just around the corner!
Maria is a great host! She gave us a warm welcome and showed us around the apartment. She also gave us great tips where to go and answered all our questions. If I/ we come back to Barcelona we will definitely book Maria's apartment again!