The apartment is in the center of Santiago, in a modern building and the main points of interest are easy to reach by foot. It is furnished with taste and in a practical way (e.g. the bed was very comfortable).
The communication was great, Valentina was very helpful, e.g. arranging a taxi for us.
On the negative side, the walls are quite thin, so you hear the neighbours passing and discussing in the corridor (not a problem during the night though) and the shower/bathroom could be freshened up. All in all good value for money for a short stay in Santiago.