Was looking for economy flights to Europe on Google Flights for the end of the year and found some decent premium fares that I couldn't resist!
For the dates I was looking at (SYD-FRA Dec 22nd depart), the next cheapest fare was ~$3500 on Qantas/Lufthansa.
Looks like flights to FCO/VIE are the cheapest currently at $1759, followed by FRA at $1825.
For what it's worth, I got mine from a small travel agent on friend's recommendation and they were another $100 cheaper - well more like $65 cheaper because there was a 2% credit card fee. Before this I had always booked the cheapest on Google flight or similar search sites thinking they were the lowest!
I've only flown them once to NZ and it was pretty good, but caveat emptor about their safety record in case you haven't read about it in previous deals before.
I'm flying Singapore airlines to Amsterdam and back from france. $1600. Xmas period