Good on them for shipping. Followed them for awhile, but eventually went with a keyboard.io. I'm rarely traveling whilst needing a dedicated keyboard, and all the extra add ons weren't necessary for me.
It also seems they flat out ignored the single most beneficial feature for a keyboard on hand ergonomics: having your hands rest at a negative slope. The UHK seems to have this feature.
I'd buy a keyboard from keyboard.io with a less radically different layout. I don't think I could reprogram the existing one to the point where I could retain my current typing speed.