Our family stayed at several Airbnbs during our Portugal and Spain trip, and Jordi's place was our favorite. The rooms were spacious and nicely laid out, and the apartment was in a great part of town that was quiet, and had many shops and restaurants nearby. Also, it was a short walk away to the Metro to get to other parts of Barcelona but our family often opted to walk instead as many of the sites were nearby.
One final note, the thing that made this Airbnb special was Jordi himself. He checked in often to see if the family was doing okay, and was genuinely interested in making sure we're comfortable by giving us maps, insights to the areas and great food recommendations.
I highly recommend Jordi's listing!