I am very new to ABB, only two weeks into it. In your description use key words that might attract people to your area and features of your home. My listing comes up as one of the first and I read from ABB to use key words, it works!
I would suggest to update your calender on a regular basis - even if you have no new bookings you can go into your calender, block a week, save, then unblock. And you can update your rates, moving them 2 or 3 USD up or down which would not affect you at all. This will help with the placement if you keep doing it every 3 - 4 days.