After having booked this air bnb I realized that this was a profesional agency, run by Swedish guys, who rent out diferent holiday-apartments in Barcelona to tourists. For me this doesn't really represent the initial idea of air bnb: to experience the authentic life of locals by living in their real apartments while they are on holidays...
Unfortunatley this kind of business causes many problems in Barcelona as there is not enough and affordable living space for local people.
BUT if you DON'T mind about this: You will live in a very nice, bright, very well equipped and clean apartment in the most lovely area of Barcelona! The team of the agency is very nice - answered always very kindly and quickly. I even could check out later as my flight was at night. Thank you!