We really enjoyed our stay! It was exactly what we wanted and located right in the middle of Madrid. The apartment is at the top of 5 flights of stairs, so make sure you're able to carry your luggage! We were only in Madrid for the weekend, so it was a non-issue for us. The flat is lovely and cosy, but be aware if you're light sensitive to bring an eye mask when you sleep, as a medium sized window did not have a blind or curtain. Otherwise the bedroom really is very stylish.
Finally jose was really accommodating when our flight was delayed and had us let in at 12:30 at night.
Would recommend to any of our friends!