We very much enjoyed our stay at Yannick's home! The only surprise to us was the several flights of stairs up to the top floor of the building with no elevator available. This was not a problem for us but I think its helpful to mentally prepare for the trek. Other than that everything about the apartment was exactly like the pictures! The air conditioning works well, the bed is very comfortable, and it is in a great location. It is near the University of Barcelona so the street below is alive pretty late in the night but you can't hear anything once you are upstairs. Just make sure you aren't walking alone down the street during the night.
Thank you Yannick and David for making our stay so pleasant and for your great suggestions in regards to pick pocketing and holding our luggage at a locker. We so appreciated it and enjoyed our stay in Barcelona!