A cute and cosy studio, with everything you need. Great location, just a few mins walk to the Prado museum and Retiro park. The street itself does not feel touristy in comparison and there are sufficient places to eat nearby.
Communication with the host was excellent, we received immediate replies (I communicated in Spanish though). The cleaning of the apartment was done very thoroughly and the check-in process was smooth and flexible.
I would recommend this studio both for short and longer stays in Madrid.