Cristina's place was great. It was in Instant booking only one day in advance and Cristina met us late in the evening when we arrived, which was really nice as she gave us a map of Madrid with some really useful and accurate tips. The location is superb - it is right by the Royal Palace, walking distance to the Old town, right near a parking lot which is a huge plus if you are traveling by car as we were. And it has an excellent little restaurant in the same building. The studio had all the necessary amenities, was stylish and cosy. The only thing that could maybe be an issue is the fact that the windows lead to the house courtyard and corridors, but since we spent almost no time at the apartment, it was no problem.