I've noticed Airbnb reviews tend to be very generous. I'm not sure why.

I recently stayed with a friend at an Airbnb in Amsterdam. The bedroom had noise and smoke from a neighboring bar until around 5am, making it very difficult to sleep, even with the windows closed.

I didn't book the Airbnb, but I checked the reviews afterwards. Several people mentioned these problems, but still gave the place 4 or even 5 stars.

I'm not sure what would warrant a 1 star review for these folks short of an absolute nightmare.