Alejo was a very patient and understanding host. We arrived one day late past midnight due to the Lufthansa strike and he got someone to greet us and pass us the keys. Lufthansa also lost our luggage and Alejo recommended some shops for us and notified us when our luggage finally arrived days later. When we left, Lufthansa cancelled our flights (again) and Alejo very kindly offered to store our luggage and said that he could try to get accommodation for us if we needed it. (Sorry, this sounds like a review of Lufthansa instead!) All in, Madrid and Alejo were wonderful. Location is perfect as it's close to the Golden Triangle of Art museums and all other tourist spots but also quiet and safe at night. The clincher is Alejo. Highly recommended host!