Well, I had an issue the first nigh as they were watching TV quite laud until almost morning, despite of being agreeded with the rule of be silent from 00:00. I noticed next day that the living room is an open area that connects all the house. They apologized about it.
The bed and Mattress are very old, full of springs... For years I didn't sleep in such a bad quality bed.
On the other hand, the communication was fast and smooth. I had a good first impression and they trusted me and didn't ask me anything.
Location is nice, close to Atocha and 1k supermarkets and bars.
It is a small room with very very basic facilites.