Ivan was very nice and really fast to answer any questions we had. We haven't met him personnaly but he even allowed us to pick up the keys the day before we moved in thanks to his mother. The flat is situated in Nueva Numancia 5 min away walking from all amenities, stores and restaurants. Nueva Numancia is maybe not the best location in Madrid but definitely better than places like Plaza mayor or its surrounding if you look for a real local Madrid experience. I strongly recommend this place if you don't mind not having a WiFi connection.