Great flat! It is bigger than it appears in the photos and the decor is adorable. We were very comfortable there.
Be prepared that it is pretty difficult to find, and note that the number is "5", not "7" (there is a woman who lives in "7" who is rightfully annoyed with random people knocking on her door thinking it is the rental).
Ze Miguel was extremely helpful via email, even helping us book a taxi to the airport on our way out. He was out of town at the time, so we appreciated the help even more. His friend Marcela was very courteous and helpful when she let us in the flat the first night, even though we arrived very late.
I would definitely recommend this flat to a friend, especially if you want to stay in a great neighborhood with local people.