I had a great time in Catu’s apartment! The location in Chamberí is just north of some awesome bars and restaurants (and has some great places to eat around the apartment as well!). The apartment was clean and bright, and the bed was incredibly comfortable. Only note would be the check-in was a bit confusing, but I was also visiting during a holiday week so in-person greeting wasn’t possible. Also worth noting the walls are a bit thin but nothing some earplugs can’t handle. I’d recommend someone staying here!