I just received the second device KPW2 and I am wondering which one should I give back to Amazon. The second one has very pleasant creamy color of the screen and doesn't have so obvious dark areas on the bottom of the screen. The backlight is much more even, but the screen itself is a little bit more tilted comparing to the first unit. I mean they all are, but this one is about half of mm tilted up to the right if you understand what I mean.
The creamy color of the new device is much more comfortable for night reading.
New one on right, old one- on left:
What do you think, guys?