Good job on the review. I have to admit that I cringed when you were dropping the Cybook flat on the desk at the start of the second video. I would fear breaking the glass on the back of the screen.
The screen is more grey then the website and box cover makes you think so I had the same first impression when I unpacked mine. I either increase the font size or turn on the embolden feature when I'm reading in poor lighting. I've compared reading a paper book to the Cybook in the same poor lighting conditions and personally found I could read more comfortably on the Cybook. In my troll cave (basement) I normally read with a floor standing reading lamp though.