Cristina's place in Madrid is a great one. Her place is very close to the palace and walking distance to many other local attractions as well. We came into Madrid by train and left by plane and can say its easy to get to and from her place.
Cristina was a great host! She accommodated us getting in a little early, walked us through the apartment, showed us all the amenities and even took the time to show us the best places to visit and how to get around.
I would definitely recommend this place for a stay in Madrid for 2-3 people who are looking for a cute place thats central to everything and located close to great local bars and tapas restaurants and a local brewery.