Our stay in the apartment was great for several reasons:
Location: this is right in the heart of the action – a couple of blocks from Gran Via, short walk to Metro multiple lines, several grocery nearby and 10-minute walk to a number of very good bars and restaurants
Host: Valentina was there to welcome us in person when we arrived, and she was very responsive to any question we had
The apartment: clean and with all the amenities as advertised. Bed and sofa were comfortable. As some others have mentioned, stairs-only in the building so please note
All in all we recommend Valentina’s apartment – especially if you’d like to enjoy the nightlife in Madrid.