This website summarizes it all: AirCrapNB Hell!!

I recently had my trip cancelled, TWO DAYS BEFORE the trip. To add insult to injury, I was offered either a refund, or that if I re-booked with Airbnb, they would credit me up to $75 if the new host charged more- all this with TWO days notice. When I contacted the host directly, she said it was due to an Airbnb error in double-booking some of the days of my stay- and since they paid a slightly higher price, my reservation was the one chosen to be cancelled. I coudn’t find anything decent on AirCrapNB, so I ended up paying nearly $1,000 more to book a hotel with 2 days notice. Absolutely LOATH aircrapnb, and please think CAREFULLY before using, either as a customer (you WILL be screwed) or as a host (they are concerned SOLELY with maximizing THEIR income, and not concerned AT ALL with your finances OR reputation). DO NOT USE!!!!!!!