Here's another reason why you should NEVER book a QF operated-by-JQ:

If there's a schedule change/cancellation by JQ, QF will go out of their way to DO ABSOLUTELY NOTHING to fix it - QF will NOT re-accommodate you on QF metal, nor even change a connecting QF-segment if JQ's change has screwed the connection.

For the price, JQ is a reasonable airline if you book direct with them, and will generally assist if there's a problem (with occasional glitches in far-flung destinations of course).

But booking JQ through QF, that's terrible, when things go wrong neither will help - all they do is point the finger at each other and do nothing.