Just a few facts
VAA do not pay flight allowance, we are issued with allowances on arrival downroute, in local currencey(except Shanghai )
E.g.
On East coast US 1 nighters on average $127
SFO $220ish 2 nights downroute
LAX $207ish 2 nights downroute
The big earners are HKG or NRT.
Initially you would fly only out of LHR or LGW. AT which time you will probably only operate on 747-200and400. A340 training is usually rostered a few months after you have been on line.
The chance to fly out of Manchester is only availabbe after 6 months. It is based on seniority and tends to be very, very popular!!!
As far as 'Burnout', I don't think so. Most people don't join as a long term career. They tend to use it as an interim for something else. Also JNR rosters tend not to be that heavy any of the time, this cannot be said of the ranks of Purser or IFS though.
As far as interviews, make sure they know you have a positive upbeat personality-SOH essential!!!!!!
Personally I've been at VAA for 6yrs, made loads of good friends, been to some of the most beautiful places on the earth
and been paid for it.
Good luck to your Sister in law and hopefully I will see her out on line!!!!!!