We had a great time at Helen and Martín’s place! The flat was very easily reached from the metro station, and we had a warm welcome to the place. It was very clean, cozy, and adorable decorated, with plenty of special touches for visitors including tour books, local tips, bathroom toiletries, and USB station to plug in items, as well as a welcome bottle of wine! The WiFi was strong and reliable. The location was truly terrific- close to many of the major old city attractions as well as plenty of restaurants. Despite the active nightlight outside we slept soundly and comfortably, but beware that the impressive blackout shades may let you sleep all day! We would definitely stay here again if we were ever back in Madrid!