Sela is a wonderful host, very responsive and efficient, she even got me a new hair dryer on a Sunday when most of the shops are closed in Barcelona. Sela is also very flexible, our train to Paris was cancelled because of the SNCF strike, Sela let us extend our stay for one more day, and also very generously blocked the following day for booking, in case we encountered further complications with our onward journey. Of course nothing can beat the location of the apartment, the area is nice and vibrant, and is walkable to most Gaudi's places. Highly recommended !