Begona's place is cosy and located in a quieter part of town although it is central. The room is small but comfortable for one. The house has plenty of art on the wall which i liked very much.
Although i didn't know Spanish and Begona didn't know English, it was nice interacting with her. She made sure i was conformable. She is kind. We used Google translate lot !
The area itself has a few cafes and mini markets. It is 2 metro stops from Sol - central madrid - or a 20 min walk.
I definitely recommend Begona's place if you are a solo traveller and is looking for a place that's quiet at night.