Nice location, clean and cosy apartment, nice and friendly host.
The apartment is close to one of the business districts in Madrid. 1-hr walking distance to the center, in front of bus and metro lines. There is a big supermarket at the back of the building. We had difficulty to park our car on the streets (somehow none of our cards worked at public parking machines) so we parked at a parking place 7-min walking distance. If you come by plane, just buy public transport tickets and use bus/metro/train.
Toilet and kitchen were very clean. There was an issue with the flush at toilet. It was more difficult than it should be but we didn't have time for plumber to fix it (the host said he could arrange someone to fix it).
Overall good apartment and good value for the area.