I had a wonderful 3-night stay at Carolina's apartment. The apartment was clean, welcoming, perfect for 1 or 2 people, and exactly as shown in the photos. I thoroughly enjoyed taking in the views, including sunset, from the 25th floor rooftop.
Carolina, who I had the pleasure of meeting several times, is a delightful and super-warm host. Her responses to queries were prompt - both before and during my stay. I greatly appreciated her advice regarding a full day tour, a walking tour and airport transfers (recommend Transvip - 7,000 pesos pp).
The location of the apartment is excellent - close to cafes, supermarket/mini-markets and just a few minutes walk to the Santa Lucia metro. It is within easy walking distance to key attractions - Santa Lucia Hill, Plaza de Armas, Lastarria, etc.
If I were to return to Santiago I would definitely stay at Carolina's apartment again. It met all my needs perfectly. And you couldn't find a nicer host!