Great little studio apartment in a convenient location- close to major museums, Retiro Park, major train station, and metro. Also very easy to get to and from the airport- there is a shuttle that costs 5 euros that leaves from the train station. The apartment building was very quiet and had cute restaurants nearby. Also the air conditioning was nice in the Madrid heat! Biggest complaint was probably the bed and pillows- not super comfortable, but besides that, would highly recommend!