My family and me had a fantastic stay at Ana's flat. It is spacious, sunny, fully equipped and nicely decorated. Truly, we felt as we were at home.
Location is great (5 minutes walk to Parque Del Retiro, and very near to small tavernas and restaurants). Ana is a nice person, very talkative and willing to give advice of what to do and / or where to go to enjoy a good meal.
If I had the chance to come back to Madrid I definetively would stay at Ana's flat again.