Gonzalo and Laura were very helpful in making my stay in Barcelona a wonderful experience. Before I arrived they provided me with multiple options to get me from the airport to the apartment. Gonzalo met me when I arrived and showed me around the apartment and also gave me information on Barcelona as well as the immediate neighbourhood.
I stayed for a month and loved the city. The location of the apartment was perfect for me. It was outside the main tourist district but no more than a 20 minute walk to everything from El Born to the Sagrada Familia, the beach, Las Ramblas. Also, there were 2 metro stations in the area which gave me easy access to the rest of the city. And there were lots of small local bars and restaurants in the neighbourhood, not to mention grocery stores, if you want to eat at home.
The apartment had everything you needed for 4 people, and could accommodate another 2, if needed.
If I'm in Barcelona again, I would definitely return to this apartment.