Long story short: Just book it!
I had an amazing time at Xaviera's apartment, sharing it with José, Xana and Camila. They welcomed me like a family member and we had a lot of very nice dinners all together. The apartment is located close to metro station, university and night life in Bellavista and Lastarria. The photos give a very good and realistic impression of the apartment and I can highly recommend to stay there.