Another on the other side here. I think it's fair if you're hesitant to remain so. I settled with my sixth. It had the best contrast, but also the most discoloration. As a reader, is certainly doesn't invite me; it's almost a hassle. In its defense, I do enjoy the ability to add multiple fonts, and the resolution is much better.
But if a Kindle4 Black, or whatever they call it, had the same resolution and the ability to add multiple fonts easily? I'd take it in a heartbeat, and go back to using my elluminator 1 (much better than the new model!) at night.