This was my worst Airbnb experience to date. When I arrived in Santiago, I was surprised to see that in order to use the portable AC I would need to leave a glass door open. This unit is on the ground floor and shares a courtyard with a bike rack and other people's terraces. I didn't feel comfortable or safe leaving the door open when using the AC. These portable AC units also don't function properly when the door is open. I told Cristian this and he was completely discourteous. He said "maybe in your country it's not safe to leave the door open." I don't know anyone who would be comfortable with leaving a door wide open to a shared courtyard in a place they've never been before. It felt unsafe. Cristian came to the apartment and was completely unhelpful and unkind. He said he was a "superhost" and didn't have time for this. I reported the incident to Airbnb and they refunded me the money almost immediately. I wish he had a bit of compassion and customer service skills.