First I want to start with Paola: She is one of the best hosts I have ever met and she become a friend after a while. She is so funny, friendly, artistic and amazing person. If you are coming to Santiago you should stay at her place and buy her some Baltica from me :) She hates Baltica but she loves cats so two beautiful cats will also welcome you.
The house was so clean and having a private bathroom was nice. As a location, I think it is very good. You can walk easily to Bella Vista, downtown and many places. Also very close to the subway.
I totally recommend you to stay with her! I stayed almost 2 weeks and it was a great experience.
Enjoy!