A friend of mine and I stayed in Madrid for a couple of nights, the location of this little studio is very central and really comfortable to walk around the city.
Unfortunately the first night we arrived was cold and the AC was out of order. But we used a sort of radiator. The neighbours are quite noise since the wall are very thin.
When you take a shower you have to hold the shower head because the holder is broken and you create a lake of water on the floor because the drainage is blocked. I wont go again