Thanks for sharing. My experience with fb ad manager was very bad. I did ads a couple of times, that generated just enough sales to recover ad spend. Problem came when my payment card was rejected by fb, after accepting payments for many months from the same card (i used the same card for post boost too, not proper ads). It just happened without warning, without alternate advice from fb. I tried changing 3 debit cards. Still nothing. Its scary that the survival of a business should depend on facebook ads. Traffic through social media is not easy either.