Brand new tiny apartment, very clean and tidy. Located just 3 min from Atocha grand station. Easy access to city center and it's perfect even for a walk. Super easy to get to and from airport (5 euro one way fair). I guess the neighborhood is ok even though it is a station area. The only thing I would mention as a negative effect is the lack of fresh air due to the layout of the apartment. The windows are from the inner side of the building which is closed and the air comes only from above. I'm not sure how that will affect the condition in the room during hot summer days. We met Carmen's son when we checked in and we left the keys in the storage box when leaving. It's a good place overall.