If you're utilizing the Atocha station to arrive or leave Madrid or taking the Barajas airport to arrive or leave Spain, there's no better location than Carmen's place. It's literally less than a five minute walk from the Atocha Station and express airport bus route. It's also a superior location to visit the city as it's on the cusp of the action without being in the noisy middle of it (Gran Vía, etc.). It's clean, comfortable and affordable for Madrid. Check in was also the swiftest and easiest we've ever experienced on AirBnB.