I bought a Kindle e-reader (before the paperwhite version came out), and I purchased Andrew Roberts' "The Storm of War: a new history of the second world war" as my first read.
The book itself is very good, and is filled with lots of information and personalities. The problem was that, this being a history, I often wanted to go back, say, 25 or 50 pages and remind myself of this or that person or situation. It seemed much too clumsy to do this on the Kindle. I finally gave up because it was so frustrating, and bought the physical book and finished it. I haven't returned to the Kindle since.
Everyone else loves the Kindle, but I don't think it is for me.