We really enjoyed our stay, the little studio was spacious, modern and had everything we needed in a fantastic location for Atocha station and various museums and parks.
The place is a big flat converted into studios so the walls are very thin. I could hear people going in and out of their rooms and even when their microwave oven was on. Thankfully we had nice, quiet neighbours during our stay.
We were happy with our stay and enjoyed Madrid a lot. Thank you Moncho!