The house couldn't have been more centrally located. It was about 1 minute to the nearest metro (SOL, which is also the center of Madrid) and has shops providing amenities 24 hours, within the block.
It was even cleaner than what you see in the pictures. The beds/mattresses were comfortable and the linens were crisp and fresh.
Javier and Patricia are truly super hosts. Had we spotted this earlier on Airbnb, we would have stayed here for entire stay.
You won't notice any difference in quality of cleanliness between this and some brand named resort facilities here in the USA.
For food lovers, there was an unending number of nice restaurants within a couple of minutes of walking distance.