From first hand experience at Clamback and Hennesy I wouldn't recommend them.
They book a lot of students in for lessons then suddenly they get a contract to ferry a plane back from the U.S and so they cancel all your lessons and it's about another 6 weeks before you can get another lesson in and then before you know it, they get another contract to ferry a plane back from the U.S and your lessons are cancelled again. It would take you years to get your licence going down this path because you're just a means of them making an income in between aircraft ferry jobs.
A few students got fed up with this sort of treatment this year and left this flying school. Anyway, as BAL refused to renew Clamback and Henessy's lease, they are no longer on Bankstown airport.