The form factor is really lovely, but it absolutely wasn't worth taking the single extra mm out.
2mm keys are fine. 1mm feels awful.
I don't really feel like I'm saying that as a keyboard geek, the difference is super obvious to anyone at first touch but I suppose then market will be mostly blinded by the shiny shiny other bits.
The single USB C port & the need to carry messy & expensive adapters if your needs go beyond simple wireless will be much more of a blocking factor for most people.
The performance can be a lot below what it appears on paper too. Having only passive cooling (no fan) means anything more than very brief bursts of maximum demand causes it to thermal throttle and choke the processor right down.
Still, it's a lovely thing for those that it suits - light demands & high portability.