Very disappointing.
1. Wi-fi didn't work. My number 1 criteria for choosing where to stay was quality of wi-fi because I had to work a lot. I emailed the host before booking and he told me wi-fi was reliably 50-60 mbps. It turned out it was actually 3-4 mbps which no one was able to fix. This ruined my entire stay because I could barely check email, let alone work. The host apologized profusely and refunded me 17% of my stay, but swearing that wi-fi was good while he clearly hadn't tested it was false marketing.
2. Lack of privacy. You are living in the same house as the host, and I found him to be quite intrusive and had to make it clear that I did not want to be disturbed while in the apartment.
3. Loud music from neighbors. One a weekday they played music that was so loud the entire building was shaking. I don't know if this is a regular occurrence or not.