Mario's small studio was excellent for my one-week stay in Madrid. As advertised, the apartment is very quiet, but close to the busy streets of Fuencarral and Hortaleza. The small kitchen has everything one needs to make simple meals, and there is a good supermarket (Carrefour) on the corner of Hortaleza. The bathroom, while small, has a great shower with good hot water. Mario was very accommodating. Overall, a great stay and I hope to return.