This apartment has a great location of you are travelling through the Atocha Station in Madrid. Very easy walk from there. The apartment was clean and spacious. Comfy beds. Nice furniture. Good hot water. 2.5 baths are unusual in this neighborhood. The kitchen equipment is spartan. One cutting knife and not much cookware. There were no trash bags in the trashcans. The other amenities (big fridge/freezer, dishwasher, washer/dryer) are new and nice. Strong WiFi. There is a lift in the building.
Check-in was smooth.
As several other reviews mention, there is some street noise, as is to be expected for this location. But the bedrooms are located away from the street and I was not disturbed.
Flat is in a great neighborhood with lots of nice restaurants, tapas bars, and shops very nearby. I would consider staying here again the next time I want a nice place in this neighborhood.