Carlos was very communicative and helpful. My friend and I arrived 30 minutes late, so he was not there, but he had given us the wifi, so we were able to communicate and go online while we waited for his return.
I think in retrospect, we might want to get a place closer to central next time, because leaving central to check in was a bit of a bummer, although there are def shops and restaurants down the street from Carlos's place. He also offered to drive us to the airport in the am for a small fee, which was about the same as the metro cost. Overall, it was adequate for a night before our am flight, and it was the best shower experience of the airbnbs so far: warm, spacious, and no lack of hot water.