Ana is wonderful!! I loved staying at her home and getting to know her and her cat, Gato. The place is, of course, very clean and peaceful – the room has its own air conditioning, as well – but in addition to this, Ana's home is like a little museum, full of interesting books and art pieces. Lots to learn from, including Ana herself.
Also, Ana's place is located in a great part of Madrid. It's a short walk away from the most beautiful part of El Retiro park and its public library, and the neighborhood is full of great restaurants and cafés. It's very easy to get to other parts of the city from here with the metro or the bus. Ana has a lot of knowledge of the city and can also give you recommendations depending on your interests. Definitely highly recommend!