Carlos is an attentive and accessible host. Communication was effective and easy. The apartment is spacious and situated in a quiet, hilly, and safe neighborhood. It is well situated in relation to bus stops and metro stations (about 10-12 minute walks in different directions for the L4 or L5), and with a range of local cafés and bars around the block and nearby. Heading south (about 5 minutes walking) gets you to Avinguda de Gaudí (which ends 4 minutes more at La Sagrada Familia) where you can find a few shops but numerous restaurants, cafés and bars. The apartment works better for those willing to explore beyond the touristy areas even if they are not that far (by public transport or walking).
We visited in early to mid July 2022 and the heat was slowly becoming harder to cope with because the A/C did not work properly. Carlos was responsive, had a technician check the unit (it required replacing), bought extra fans and reached out multiple times to ask if he could do anything else to make things better. (Airbnb was completely unresponsive about the matter and failed to even know what was happening .) Despite this circumstance, I would recommend this property and Carlos as a host in a heartbeat.