There are a lot of problems with the Kindle PW. Given all I've read from actually people buying them and then trying to get good replacements multiple times, don't bother.
There's absolutely no issues with the Paperwhite other than the backlight is a little uneven at the bottom. I'm interested in whose having issues with them?
Bright spots, color spots, shadows, text not that black and other problems. Go join MobileRead to find out more from actual owners who have sent them back multiple times for issues like those listed above.