Great apartment in probably the best location we could have stayed at. Everything was walking distance, and if you did need to go a little further away, the metro stops were very close.
The apartment was just as the pictures described them. The only thing to note, which won't be an issue if you plan it correctly is that, the hot water runs out in 10-15 mins, and you have to wait till it re-heats. This just requires some planning in the mornings, but it is very manageable.
Rutilio was a great host, and he met us on time, and gave us some tips for the city. And when we did have a question during the middle of our stay, he responded right away. I would definitely stay here again, and recommend this place to others visiting Madrid.