I can't recommend any of these models for photo work if one wants accurate colours and does not own a colorimeter. I know a few other people received inaccurate Crossovers (blue dominance) like mine, but I have no idea how much the other units very.
I think this is a Crossover issue specifically from what I'm seeing. 8000K is way off.
My Achieva is something like 6300K according to the older Eye One D2, and 6780K in the middle according to the newer Eye One Display Pro.
Also my uniformity was good on white in terms of color temp ranging from 6498K to 6780K. Brightness was also decent. My only issue is the one stuck pixel an inch from the top in the middle, and the other strange issue is that the top of the black shiny bezel sags... It hid a two pixel line near the top so I removed it exposing the white underneath.
It was held on by various pressure clips that can be pushed in by just pushing inward on the bezel and pulling away from the assembly.