The QF system worked fine on trials too.
Have you used it on a line flight on a V oz aircraft? With 350 pax deciding to use it at exactly the same time?
We won't know until 6 months in how its going. I certainly hope it works well though.
I'm amazed how many people on PpRune have had QF flights with unserviceable IFE systems... in 5 years on the 744 I can only remember 5 occasions with an inoperative system, and maybe about 10 with it in degraded mode. Maybe I'm lucky, or PpRuners are unlucky!
Anyway... good luck to the V australia team... it is a difficult time to be launching an airline, and no doubt Qantas will push hard. SYD - LAX traffic is already down significantly, and with more airlines fighting for passengers (not just Qantas and V aus), its going to be nasty.