Cristian's place is well located and inexpensive for the centre of Madrid. Cristian is a hospitable host who greeted us on arrival and gave us useful tips for places to stay.
The room is clean and simple with a window looking onto the street. The apartment is very clean. The bathroom is large and has a strong, hot shower. The apartment has a kitchen, which we didn't use except to store water in the fridge. The WiFi is fast.
I recommend Cristian's place.