It was great to stay with David and Arthur, his fabulous cat :) Easy communication and the appartment is very well connected to train (also to the line from the airport) and metro. The surroundings are quiet but within a 5 minutes walk you find nice restaurants and bars, e.g. at the Ramblas de Poblenou.
Everything was well prepared, clean and Wifi connection worked perfectly. David is friendly and was always willing to give tips which you shouldn't miss :)
Thank you, David!