We loved our stay in the Atocha boutique. The location is perfect - walkable to so many major sites and museums, from the Big 3 art museums, to Palacio Real and Temple Debod, to Puerta del Sol and Plaza Mayor. Super convenient to subway and bus, too, with tasty bakeries nearby, to boot. The unit itself is clean, modern and well-equipped (FYI: Nespresso coffee machine), and combo washer/dryer (worked well!). A bit cozy for American habits, but no issue in actuality.