Correct about the 2 stage interview. Second one is more technical based, try the brush up books out there for some pointers
Sim was on the A320 when I did it but they don't expect you to fly an Airbus. Appeared to look at your skills and cockpit manner.
No ME basing.
Recruited good crew, not sure what criteria they go for though.
Hope this helps.
PS Personal opinions, not those of the company.