After I experienced a couple bad bookings I found out about: airbnbhell.com It's full of horror stories from both owners and renters. And the gist seems to be: once Airbnb has your money (fee) they really couldn't care less about what happens.

I recently stopped using them after they asked to send in facsimiles of government ID to continue using their services (after being a customer with all 5 star reports over many years).