The apartment was organized and well decorated. However, there was a lot of dust under stuff like beds and the carpet was so dirty it made your feet covered in dirt when you walked over it too long. Lastly, there was pink/red mold in the shower which was pretty gross and wiped off with a tissue easily so it makes me think it had not been cleaned in a while.
We never met the host, which was also weird/new to me but the directions to find the apartment and get in were very accurate and easy.
Lastly, the only air conditioning unit was in the living area so the bedrooms were very hot. When we were there madrid was 90 degrees so it was impossible to sleep. We ended up rolling the single bed into the living room and also sleeping on the couch. In the fall/spring/winter i bet it would be perfect!