Regardless of the commercial success of the individual Australian airline (yes I know) the service delivered by both major Australian airlines (excluding their LCC siblings) is excellent in the main and far superior to that delivered by any of the Us carriers, potentially with the exception of JetBlue and Virgin America.
The us majors are horrible experiences and the Ozzie punters don't know how good they have it.
That all said if they aren't a commercial success great service isn't sustainable, but that is a whole different discussion