José apartment was pretty much at the very center of the Madrid! It is literally down the road from Plaza Mayor, which is one of the most happening spots in the city. The apartment was as described, and everything was clean and in good order.
José also welcomed us very late into the night (since our flight to Madrid landed at 23h). The check-in and check-out was very smooth, and he was very responsive to our messages.
I wouldn't hesitate to stay there again the next time I find myself in Madrid.