We had a great long weekend in Barcelona. The Airbnb is located perfectly in the heart of the city and is easy to reach. The communication was easy and the apartment clean and well furbished.
In the apartment are three rooms in total that are rented out on Airbnb which can each be locked with your own key, bathroom and kitchen are shared.
There might be some noise from the courtyard or streets during the night if you keep the windows opened which is normal for Spain after all ;-)