Air Mike,
as long as AO can get enough Qantas mainline guys to go across then that is the way they will go. As of yet they have not had to face the situation of not having enough guys interested in AO, however a lot of the interested parties do require conversion or upgrade training from mainline. No major problems with FO interest, some problems with Captains. I would suspect that FO to CAPT upgrades would happen in the future with ex QF mainline before external direct entry.
Jake,
for junior pilots it can be summed up as paid more and work a lot less. The lifestyle is significantly improved which adds to the appeal.
For middle ground pilots paid slightly less and still work less.
Probably not many senior guys interested.