My full review is here on my personal website. I'll post a few excerpts here, though:

4.5 out of 5.0 stars

The very worst thing about this book is that, at times, Ender’s actions, thoughts, and behvaiours seem somewhat fantastical. Granted, genius children often mature faster on the outside, their thoughts would usually betray their age. Not so much in what they are thinking, but how they are thinking. Does that make sense?

The very best thing about this book is how much better it was than I expected. I’ve been seeing this book/series around for years and never read it. Why? Because honestly, based on the teasers on the back I thought I was going to be reading a book about a rebelious child who miraculously succeeds against the giant evil government in spite of all the adults trying to kill him. Yeah… Boy was I wrong! ^_^