We (my mother, sister, toddler, and myself) stayed for two nights at Sergio's place. The apartment is located next to Atocha. We visited the Reina Sofia and Padro museum and have a great time downtown Madrid. I took the Renfe twice for meetings, and the location was great. We did not cook, but the kitchen is fully equipped. Sergio made sure that we have minor cooking species and ingredients as well as coffee and tea. My mother, sister, and toddler slept in the rooms and I slept in the queen sofa-bed in the living room. Excellent communication and friendly hosting. I highly recommend this place.