This is a comfortable, lovely, clean apt with perfect location. It's entirely enough for a short stay in Madrid, you can find everything you need for a stay. You can walk only about 30 meters to a very busy street full of stores and restaurant and 5 minutes to Plaza sol, 10 minutes to the airport bus station. While the apt itself locates in a very quiet street.
Ruty and his partner are very helpful and nice. I would recommend this apt if you want to visit Madrid.