OK, just to clarify -- It was a Qantas flight with Sydney-based cabin crew, and presumably Sydney-based tech crew.
The registration was VH-XZC.
Yes it was a great flight. It always is. Qantas is unquestionably my preferred carrier on that route.
Hooroo, it wasn't obvious to me in your first post that you were referring only to JQ. Personally I don't think of Jetstar as part of Qantas -- it's more of a parasite on Qantas.