Lovely, well-located, clean, and comfortable room with all that you may need in one place.
Staying at Diego's house was like being invited into a family. It was a welcoming and friendly atmosphere, both of us were greeted at the apartment when we arrived(separately) even though my flight landed after midnight. The beds were perfect, AC-well functioning and needed in the +39 degree weather, towels, a mini-fridge, cutlery, water, and a kettle - all within the room. I had missed that we won't have access to the kitchen, but that was a minor setback.
Also, Diego's father was more than happy to recommend things to do and places to see, so overall it was a pleasant stay and made our Madrid trip a lot nicer.