This is a great apartment in a wonderful location. It only a short walk to most of the sites of Madrid. The historical places, stores and restaurants are just minutes away walking. The apartment is very clean and well appointed. The kitchenette was very much appreciated during my extended stay. It even has a real refrigerator instead of a tiny apartment fridge!
The apartment was perfect for me, but it is small. The Murphy beds are large and comfortable, but if it may be difficult for more than 2 people to be comfortable there.
Overall, I highly recommend this apartment.