A person who I believe in these matters tells me these are very excellent sounding. Looking at the measurements, I see that IMD is very low so I guess I kinda believe it and have been keeping an eye out for a discount. I didn't notice at first but it turns out there's a 15% discount at checkout.
BTW the listing doesn't say it's Prime Day and the amp doesn't show up when searching in the Prime Day category, so I didn't put Prime Day in the title.
It is a bit cheaper if you get it from Amazon US, pay in USD and avoid exchange fees, currently USD232.82 delivered which is AUD345.30 using wise.com. You'd also need to get an AU power cable. There is 30-day return policy but it would need to be taken to the "nearest" UPS depot which is not that near for me. https://www.amazon.com/dp/B0CC4M8XK4
There's also a "Plus" version for more money but I don't see the point of that myself.
I didn't order one, still thinking about it…
Value in this area is very subjective… but FWIW as an alternative the Fosi v3 is currently $80.34 with eBay Plus - https://www.ebay.com.au/itm/204458892259
These get a bad rap, Toppings rep went down the drain recently with build quality.