What a fantastic location and amazing apartment. Carmen was great - met us at the door to help facilitate check-in. Very updated and modern space - keycard entry from the street as well as to the apartment itself (same key) made it so easy to get in at night. Perfectly located in central Madrid - we walked everywhere, didn't even need to buy any metro passes. Amazing clean apartment with great appliances, spacious bathroom. I dont't think there is a better place to stay in Madrid.