We had an excellent stay in Maria's beautiful apartment. I stayed with my wife and 6 month old son, the stairs made things a little tricky but it was well worth it for the fantastic view of Madrid and the tranquil roof terrace. The apt was clean and very well organised, although we did bump our heads a few times on the low ceiling getting up to the mezzanine bedroom! It was fantastic being right next to one of the best parts of the city for food, bars and shops - experiencing the buzz of Malasaña - and then being able to relax in a quiet, comfortable place at the end of the day. Maria is a great host, super quick when responding to emails and very pleasant and helpful. We would highly recommend this apartment (especially when the lift is working again!).