We really enjoyed our stay at Studio Centre- Reina Sofia-Atocha. The space is tidy and clean, with plenty of familiar IKEA touches and good Wi-Fi. Hot showers and very comfortable, urban space with communicative hosts. The building and apartment are very secure and its tenants always said hello. There is an elevator but a short flight of steps are still required to access it, both at the entry and from the landing. The soundproof windows are quite effective at muting everyday traffic noise. I do travel with earplugs and found them useful for the occasional sirens that do make it in. Easy walking access to museums and literary district as well as five-minute walks to two Metro lines to get pretty much anywhere. And after several days enjoying Madrid, we were able to walk with our luggage to the Atocha station to catch a train to Málaga.