The apartment itself was clean and well located. The WiFi worked and the shower was hot. Location is good.
The only thing that spoiled my stay was the electricity was cut to the building for almost three days. This meant no light, heat, fridge for the majority of my stay. And on my last day no gas for cooking either. Although this was not the fault of the host, it really spoiled the stay unfortunately.
I think the apartment could also benefit from a better heater or an under-the-bed heater for the cold winter in Santiago.
Most things were good however.