Everything went perfectly fine during my stay in André's place. I didn't have the chance to meet Andrés in person because I missed my flight, so my cousin who was able to catch the flight and was going to stay there with me was the one who got the keys and met him.
We got the place really clean and tidy. The apartment has a nice size, enough for up to four people. It has a grat balcony overlooking the city's downtown and in a clean day you can get an awesome view of the Andes Mountains. It's stunning.
The building is very well located, close to many attractions and there is also a metro station nearby.
If I go back to Santiago I will definitely consider staying in André's place again.