OK....I'm a total noob when it comes to Kindle (and eBooks in general). I got my Kindle about 2 weeks ago, but had only slowly been going through a (non-fiction) audio book. I had not really "read" on it yet.
I started "reading" my first book yesterday. Wow....the ease on eyes is same as a book, but without the awkward holding that a book has. I found myself reading about 1.5X faster (at least). This was a nice little bonus I wasn't expecting.