very clean, quiet and comfortable stay. Alejandro and his rental hosting agency (Madrid Rentals) did a wonderful job keeping the rental building, and our unit, impeccable and beautiful. he was very flexible and helpful when we needed help dropping our bags early, when we were looking for recommendations and was very quick to respond all our questions. the wireless check-in (where your phone is your only key) can both a blessing and a challenge. it can be hard if all your guests don't have a smart phone and/or if all your guest don't have access to internet. they do provide the access that can be reached at the entrance however. the apartment space was well distributed. we were surprised at how quiet despite being so close to the center of everything. great stay. thanks