Michel's apartment was the perfect place for my wife to stay while we were in Madrid. The view from the balcony into Plaza Mayor was perfect, but everything else about the apartment was great, as well.
We did Michel's bike tour, and both loved it! Sign up for it!
The house was clean, and Michel's wife, Sonia, assisted us with check-in and even provided us with lots of information on places to go, things to do, and directions to places.
Overall, Michel and Sonia made our stay in Madrid a WONDERFUL one, and I couldn't recommend them any more highly than I do.
Book their apartment for your stay!