We had a great stay here in May. The apartment was perfect for four adults. Though the third bedroom is a little small.
The location is very good for exploring this beautiful city. On a nice, square just round the corner from Plaça Espanya and the metro, there's a massive shopping centre a few doors down. It has a very good supermarket in the basement and restaurants on the roof.
Small bars serving tapas on every street and a very nice cafe next door. A great place to stay.
The best feature of this apartment though is the patio. Just perfect. And what a view!