We were only staying one night on a layover in Madrid, but everything was comforable and clean. Check-in / out was very easy with the clear instructions provided. The walls are alittle thin and can hear the conversations next door. In our experience that wasn't a big issue, everyone around us obeyed the quiet time house rules provided by Arnaldo. Otherwise, the apartment was spectacular and would have liked to stay there longer if we could. Would recommend.