Margarita is an excellent host, attentive, chatty and eager to help. She welcomed me when I arrived late at night with a home-cooked meal, a map and plenty of advice. She doesn't speak English, which wasn't a problem for me but which potential guests should be aware of. Her apartment is well-tended and feels like a home, and she's quite generous with food. The apartment's location is a bit of a walk from the major sights, but there's a Metro station two minutes from her building, so I had no problems getting everywhere I wanted to go. I definitely recommend staying here if you have some Spanish and want to meet other interesting travelers and a very motherly host.