This is a perfect place to stay in Madrid. Great location in city center with two min walk to metro (direct line to airport), stores and restaurants. There is an app for the stay that provide self check in and check out. The appartement is huge (three bedrooms, living room, kitchen) and has everything you might need. Marco is a great host, he responds really quickly for any questions we had.
Recommend this place to others and will be glad to stay here for my next trip to Madrid.