This is a hard one to review. I was staying when Santiago had 90+ degree weather, so I made sure to book a place that included Air Conditioning in the listing. When I got to Martín's apartment, I couldn't find the AC, so I messaged him about it. He said that there is no AC, and I should be happy without it. We messaged back and forth a few times about it, but he never offered an explanation for why the listing was wrong, and never offered to do anything about it. I contacted Airbnb and they suggested requesting a partial refund. I made this request, but Martín denied it. I talked to Airbnb again, and they said I should leave the apartment and move somewhere else, so I did. So, that was quite an ordeal.
HOWEVER, the place was otherwise very nice. It's bright and well-decorated, on an upper story of a nice building, with charming wood floors, open kitchen, plenty of clean towels and kitchen equipment. The living room and bedroom are spacious. The internet is fast and reliable. There is a lot of noise because it directly faces a busy road, but you can wear earplugs. The location is fantastic, just across the street from the lovely Santa Lucía hill, and a few minutes walk to downtown.