Moncho's place was fantastic.
It's perfectly located just minutes from the train station, El Retiro Park, Reina Sofia Museum, and transit.
Moncho provides excellent and easy to follow instructions for self check-in and everything was as advertised. Communication was always fast and friendly. While it's on a busy street it is quite quiet in the space and no issues. Staris or elevators are options to get up or down easy.
A recommended place for one or two people.