Great location, right in the center of Madrid. The area is what you would expect being in a City Center. It felt safe and lots of places you can walk to in a few minutes for restaurants or drinks.
The apartment was nice, mostly clean and comfortable. The access is right on the street, just a metal fence and the door.
There was a bit of a sewage smell in the on suite bathroom that didn’t go away.
The mattresses were a bit hard as well, but that is personal preference I guess.
Overall we had a good stay, the City is awesome and the location very central.