Starting off with the good – the apartment was in a great, generally quiet neighborhood. Chechi was good at communicating, and her friend (support staff?) Anahi was cool too. She greeted us upon arrival. Everything was clean and looked pretty much just like the photos. The beds were firm, but comfortable; and the shower was nice, though confusing at first (there are no icons/letters, but figured out that the top handle is hot, and bottom is cold)
As for the not so good – while the neighborhood is generally quiet, we experienced some pretty loud neighbors. One that had music playing at night until just before 2AM. This is uncontrollable by the host of course, so I recommend coming prepped with earplugs, just in case. The apartment can get fairly cold in the winter months, especially if you leave any windows open. Just know that there's no heating, so bring warm clothing!