The Sony Store has these on sale for half price (currently on back order).
Some decent reviews (usually compared to Bose QC35's, apparently better sound but not as good ANC):
Cnet 4.5/5
Trusted Reviews 9/10
Currently $296 at Harvey Norman and $499 at JB.
Tried to price match at Harvey Norman (to take advantage of Amex offer) but they do not price match manufacturers.
Harvey Norman do have the wired version of these for $125.8 which is also pretty good (RRP $299).
The wired version are not ANC?