Maria's place is right in the center of Barcelona close to the aerobus stop from the airport, metro stations, stores, restaurants, supermarket, etc. Even with it's central location, the apartment itself is very quiet.
Maria was great with communication and was right on time when meeting us for check in. She even left us some water and chocolates.
Because of it's location, it was easy to explore with 5 year old and come back and take a mid-day break if needed. If we are ever back in Barcelona, we will be staying here again.