I bought one a few months ago for $529 and am very pleased with it. You'll see the discount next 3 days upon checkout.
Compared to the Xiaomi 144Hz monitor, it has same brightness, better curve (1000R Vs 1500R), HDR support, and 2 speakers.
It lacks one HDMI port.
The OD:7ms response time seems to be slow but Kogan traditionally uses the slowest GtG time in their spec compared to other manufacturers who uses average GtG time, so this 7ms response time is not necessarily worse than others.
My own view as a use: a decent display. The HDR and speakers are just there, close to useless, but the 1000R curve is nice. Build quality is much better than average.
Factory colour calibration is way too warm. But with a proper calibration profile it's beautiful.