I highly recommend Gonzalo's place. It is very clean and comfortable. I liked staying outside of the tourist areas because it was quiet and allowed me to see a different part of the city. It was easy to travel to the sites that I wanted to see, by walking (30 minutes to Plaza de Armas) or by bus, which stops 1 block from the apartment, or metro, which is an 8 minute walk to the nearest stop. Gonzalo's colleagues arranged for me to check in early, provided me with a map of central Santiago, and suggested places to visit. They explained the metro system to me and gave me a Bip card to use for free during my stay. They were extremely helpful and friendly during my stay.