Alberto's place was great. He was really helpful as we arrived early and he kindly allowed us to store our bags whilst we explored Madrid. It was a 10-15 minute walk to the centre of Madrid, three blocks from the nearest metro. There is a well stocked shop on the corner too.
There was a lift to the flat making it easier for access.
The place was very clean and there is a lovely balcony to sit out. I would highly recommend this as a place to stay.