It was great stay.
Fully equipped, bright, and super clean studio.
And heating system is powerful, we stayed warmly.
Location is good. Close to Sole, Opera, La Latina and Museo del Jamon(good tapas bar and bakery).
Cercanías is totally useful. Cercanías is cheapest and easy way to get to Sol from airport or atocha renfe(If you use renfe train, you can use Cercanías free within 3 hours after arriving or 2 hours before departing).
And José is nice host, he welcomed us brightly and helped carrying luggage.
Thank you José!