Ariel has the perfect apartment in one of the best spots in Madrid for tourism possible. I spent 3 nights here and only had to take the metro line once because all of the places that I wanted to see were in walking distance of his apartment. Stylish and clean. There was an issue with the shower while we were there and Ariel was away, but he was still very responsive and helpful when we reached out to him. I had a great time here and would definitely recommend it to others.