I think we were Felix's first guest & consequently there were a few teething problems. Felix's son Miguel dealt with the booking & all communication, as he speaks English. He was great at communicating via airbnb message & whatsapp. We arrived in Barcelona during a heatwave which made it pretty uncomfortable. The flat would really benefit from a better clean & some air-con but fans were provided in all rooms. The plumbing in the bathroom needs looking at, as the bath collects water. He provided a great coffee machine which we loved but no kettle for boiling water. Although he did try to rectify this.
Being by the Sagrada Familia was quite touristy but very useful to get the metro everywhere from. Which I can highly recommend.
Also, Felix himself arrived on the checkout day and gave us a lift to the train station which was very kind.
Overall I'd say this is a decent budget flat for 4/6 people but not super comfortable.