The apartment is about 20 mins walk from Atocha, in a quiet neighbourhood.
2 bedrooms out of 4 have a street view, the other 2 face a filthy pit-style backyard.
No living room.
The apartment is not at all cozy but I guess it works OK for short stay if you only spend the night.
Bathrooms are OK. Internet connection good.
Electronic key was a pain in the *ss. We paid 30 € for late checkout but the link to open the door has expired so we had to wait in the street panicking about getting our bags in time for the train.
Tiresome online check-in - I had to chase my guests to upload a selfie in order to compete the check-in process.
I wouldn't stay again.