This is a great place to stay in Madrid! The location is amazing--on a quiet street but in the heart of Malasana which is a hip artsy neighbourhood with vintage stores and restaurants. The metro is just a few minutes away (for trips to the Prado and Reina Sophia) and a 15 minute walk will bring you to the palace, delicious markets, Sol etc. Constantine has put that extra level of thought into his apartment--it is compact but very well organised and has thoughtful extras like soap, shampoo, umbrellas. We were very comfortable as a family of 4 (2 adults, 2 kids). There was even a small courtyard with breakfast table though the weather was a little too cld for us to take advantage. Constantine was easy to communicate with, kindly flexible about a last minute change in our travel plans and picked us up from the airport for a reduced fee. Don't miss this one!