Ahh it arrived in today.
I have no complaints. Silky smooth keys with an inital rubber-dome-like bump and a small, tactile bump right before the key actuates. It's just like my ALPS keyboards but not rattly. This is a good keyboard. I especially like the quiet Cherry Browns without the pretentious high-pitched click that I hated in the 1980s. They're just like non-clicky ALPS but without the rattle.
The DAS Professional S firmware is excellent. No transposition errors like the ABS M1 so I can type faster now.
I have a theory: the price may be down for all buyers because the keyboard does not meet current Windows logo requirements due to the non-domed Windows key. That matters to some resellers and groups (not the domed keys, silly, but the Windows logo).