Sergio's place is spotless clean, nicely decorated and quiet, it has everything you need for either a short or longer stay (I stayed a few weeks). Sergio is an impeccable host, he was very helpful with everything and communicated very promptly at all stages. The location is great: it is in a good, residential area which is removed from the chaos of the more touristic areas, but at the same time very well-connected (the metro station is just a few minutes from the apartment and the airport is a 10 minutes cab ride). There's a big supermarket nearby which is open until 9pm. All recommended!