i have a swiftpoint z2, i find the layout and configurability to be incredible, plus the tilt sensor and deep click buttons are amazing when you get used to them
The air2 is nowhere near a version 2, it's nothing but a minor revision.
Meanwhile I'm still waiting for full functionality on the nreal light, the 3DoF tracking of the air is not enough for proper AR.
I'm using streamdeck-ui installed on a pi0w for mine. No reliance on a separate pc to have the streamdeck working as a generic home automation controller as everything is running on the pi.
https://timothycrosley.github.io/streamdeck-ui/
I was really interested in these once upon a time, but nreal have taken so long getting them to market I got bored of waiting.
They should have scrapped the devkit and released a glasses only devkit globally with phone support for all that are powerful and capable, at least 2 years ago