This is a tiny apartment in a very old building - a traditional architecture, typical for Madrid where you enter the apartment directly from the interior courtyard. Because of that you'll probably hear very well if the neighbors decide to be noisy, and there is not much natural light in the apartment, on the other hand it is not as hot and noisy as apartments facing the streets. It was very clean and nicely decorated, the AC and wifi worked perfectly. The fridge was a bit noisy.