I've never seen Denis, during my month stay, but he seems to be good (ha-ha).
He (his wife eigther) was always in contact by whatsapp. They answered all my questions and were very nice. The apartment is good furnitured, light and beautiful. We used roof pool for children , when it became warm enough (the middle of May). There is a beautiful market next to, Lidl supermarket, subway station is in 3 minutes walk from the apartment. When we were in Barcelona the nearest quarter was under reconstrction and it was going to become a superquarter (a pedestrian area, lt is part of an ecologic company in Barcelona). Do not be confused that Raval is close, the apartment is situated on it's border, but San-Antony and Poble-sec are fancy and good for walks