Mario's place is an excellent location. It is in a nice neighborhood in a gates pedestrian alley. There are restaurants right out the door. Korean, Mexican, Ethiopian, Peruvian, Chinese, Pizza, Ice cream are all steps away. You are also a pleasant walk away from all the restaurants and bars in Barrio Italia. Actually, there are restaurants in every direction. We ate a different nationality every night! It is also a beautiful walk to the Gran Torre and many other places. Santiago is a very walkable city.
The apartment is sweet. Perfect for 2 people. There is a small private garden in the back. The only drawback is that we were there for some very very hot weather and the AC, while very strong downstairs, takes a very long time to cool off the sleeping loft. The fan helps (Thank you for that!), but it can be uncomfortable at first.