The keyboard is working properly, sounds really nice for a factory lubed keyboard.
I am happy with it, the only complaint is that there is little to no information on which of the 25+ software variants you need to use for the keyboard and if you un-install one of them after realizing its the wrong one, it'll nuke your preferences files and apps that store info there will seem to have gone to default settings.
I posted how i got mine working properly here https://www.reddit.com/r/keyboards/comments/1iu5yrp/comment/n5ycp57/?context=3

For the price, the build quality is excellent. Feels super responsive (coming from Gateron browns.)
The grey keys on the top half of the keyboard have more of a duller (vintage IBMesq) colour, rather than the lighter grey in the product images.

Software was the only pain point. Honestly it was a nightmare, installing every version on ajazz's website, (some of which MS Defender picked up as viruses), and none of it working.
Finally found a yt vid that suggested using the online driver and this is what worked for me.
https://ajazz.driveall.cn/#/

But overall super happy with the purchase and i dont think I can go back to mech switches, esp with the snap tap in fps games.

Thanks for the great service, live chat was super helpful. I’ll be ordering again soon.