We loved our stay. The apartment had great design details and furnishings, keeping old elements of the building in the apartment while completely redoing it. Lovely, personal details throughout. Kitchen was modern and very well-equipped, including some staples (salt, olive oil, etc) which is so helpful when you're traveling . The apartment is in a sort of bohemian area of Madrid with lots of restaurants and markets nearby, and a short and pleasant walk to the Prado, etc. We loved the glassed -in balcony, and saw an airshow one morning while having breakfast there!
Lilianna met us at check-in and was a charming and responsive host throughout.
The apartment is much larger and even better than the pictures. One thing: We knew when we rented it that there was A/C only in the living room and that was fine for us as we were there in October, and there were great ceiling fans. However, given the size of the apartment and the location of the bedroom in the back, it might have been an issue for us if we were renting in the summer, as the cool air didn't reach there.