I stayed with 4 friends in the apartment, and although it is only 2 bedrooms, it didn't feel at all cramped. The photos are quite accurate and I was very happy with the look of the place.
Natalia met me and checked me in, she was friendly and efficient and I can't fault the level of service.
All in all, I had a fantastic stay in Madrid and the flat was ideal for us. Although not in the heart of the historic old town, the flat was right by a metro stop so access was very easy. The neighbourhood felt very safe and nice and there were good cafe's restaurants and supermarkets within a couple of blocks. It's great.