We had a wonderful stay in Rafaels appartment. It is a great place, 3 dubble bedrooms and a great livingroom with a big table for 6 people.
We walked to Parc Guell and the Sagrada Familia, which is a pleasant walk for about 1 km. Metro station Joanic is at 30 metres and brought us to all locations, e.g. The Ramblas. Also the bakery, grocery store and restaurants are in a few minutes walk.
Thanks for the great stay and your quick responses Rafael!