I visited Madrid for a weekend and spent 2 nights at Cristina and Fabi. I had a wonderful time. The apartment is really nice, clean and cosy. Made me feel like home. The company was more than pleasant. I had some really good conversations, plus the girls give really good indications for places to visit in Madrid. Also the flat is situated right in the center, you have access to a lot of places only by walking 10-15 mins. I would deffinitely repeat the experience!