Congrats! I got mine last Friday
So far it seems fine. The stock reader software is lacking but hey! it's Android so that's not really much of a problem.
It's the same form factor as the KA1, which I prefer and is only a touch heavier. In comparison, the Onyx Nova(n) is metal case and noticeably heavier and slippery to hold.
The screen lighting is very even and no problem to get the preferred level of lighting.