Very nice apartment, clean, light, spacious, with everything you'd want available: fridge, oven, washer, dishwasher, huge TV screen, etc. Supermarket right across the street.
The host was very kind and accommodating, fantastic communication.
The street can be a bit noisy at night, but nothing too extreme. Aside from a few suggestions for improvement I shared privately with the host, I would wholeheartedly recommend this apartment for a stay in Madrid and would not hesitate to stay here again.