We stayed at Alfredo's for three nights during MadCool festival. The room was perfectly clean, as well as the bathroom. Alfredo and Claudia are very nice and easy to talk with. The location is perfect to go to madcool by public transport but it's more difficult to come back (metro is closed when the gigs are over). Two options : by foot (35 min walk, we did it the first night, we survived) or by taxi (around 6-7€, 20 min waiting for a cab because we weren't the only ones to have the same idea, 7 min ride). We highly recommend Alfredo's place for good experience in Madrid !