All the staff of Barnarent is very nice.
The apartment has everything you need for living.
The Sagrada Familia is about 15 minutes on foot from the apartment.
We enjoyed our weekend in Barcelona.
P.S. Just an advice for you, future tourist: DO NOT GO to Barcelona by car. It is a hell to find a free parking place. A private parking costs min. 25€ per day + 15 € per night.
Thank you! :)