My stay with Raul was great for what I was looking for: a place to crash after days of walking throughout the beautiful city of Madrid. The spot was close enough to beautiful monuments and the metro, and felt very safe and clean.
The only complaint I have was that the space was photographed really well and seemed bright and airy, however there was only one window in the entire unit. Again, fine for what my stay was for but just to note if you're planning on spending more time during the day at the Air Bnb.