Belen's apartment is very comfortable and cozy, with all that anyone needs when visiting Santiago.
Location: The apartment is located very close to the metro (like 5 min walk), supermarket, restaurants, stores, etc. The Paseo Bulnes is a great pedestrian-only strip with stores and cafes, fountains and even a little park at the end. I also felt very safe during the day because it's close to many public institutions including the Moneda, so there's a lot of police around, and there's a lot of people going to/from work all day.
Accommodations: In general, the space had all the basics that any traveler needs. The bed is comfortable, the shower has a good stream of hot water, there's a washing machine, and there's a stove top and little electric oven for food. There's also a large gas space heater that quickly heats up the room. In general, the apartment and installations are a bit dated, but still totally functional.
Hosts: Belen was very responsive, and Cristina the caretaker as well. Both were very friendly and quick to answer my questions. Check-in and out were super smooth, and there is also a helpful doorman for the building that's there during standard working hours.
Overall, I would stay here again for future visits to Santiago!