I have my properties published in other sites: Homeaway, TripAdvisor and Booking.com. Airbnb is one of the sites that best works, but I think it is very useful to be in all of them to be able to get as many bookings.
It works very well with the synchronised calendars. I have all my calendars synchronised, except for Booking.com, as I increase the rates, because the commission in Booking.com is higher