The apartament is nice, very clean and confortable. It has everything you need, including good heater, great bed, warm shower and kitchen utensils.
The location is incredible. It's literally steps from metro Santa Lucía, and I could walk to a lot of famous turist spots like Plaza de Armas, La Moneda, Lastarria, Bellas Artes Museum etc.
Brian and Paolo are very kind and helpful. They gave us privacy, but if we needed something they helped right away, including giving us good restaurant tips. And there was wine in the apartment waiting for us, so lovely!
I really don't have anything bad to say, for real.
If I went back to Santiago, I would definitely stay there again, because i felt at home.