We loved the location of this apartment, within a short walking distance to El Retiro Park and just across the park from the Prado and other art museums. Also, there are many delicious restaurants nearby as well as markets if you want to cook on your own. I traveled with my wife, adult daughter and her boyfriend and the sleeping accommodations are perfect and spacious for 2 couples. The layout is compact but very efficient and the clothes dryer is an added benefit. The key system is completely electronic through your smart phones. Just in case, the hosts live above in the same building but we never saw them. However, they are extremely efficient and informative with their communications and instructions, as well as spot on with their restaurant recommendations. I would not hesitate rebooking when we return to Madrid.