I have a lot of experience in the industry.
Word of advise, join the FAAA (union) immediately on starting with any airline. In fact call the FAAA just before your commencement date and ask for an application form.
Its about $10 per week (tax deduction) and they are on the other end of the phone when anything happens (i.e. elrehab) and will negotiate on your behalf if you are accused of something as well as group negotiation of salary and benefits.
In Oz there are two divisions:
Long Haul International FAAA:
Flight Attendants' Association of Australia
Short Haul / Domestic FAAA:
FAAA Domestic - Flight Attendants Association of Australia Domestic Regional Division