I am ashamed to admit that I've never finished the Ender's Game original set. But I did read Ender's Shadow, which I think most people really liked. I didn't mind it, but I have some serious reservations.

First, the original story is better. This re-telling isn't near as fun. It takes longer to get to the GOOD story, though it is interesting to see the background on this kid.

Most of what I disliked, though, is that this re-interpretation is NOT what Card originally had in mind when he wrote Ender's Game. The character that exists in Ender's Shadow is NOT the same character that is in Ender's Game. Sorry. I won't give it to you so easily. And not only that, but you have to re-interpret Ender, too, and I'm not willing to do that, either. In Ender's Shadow we get Ender's softer side, his insecurities. Suddenly, a scene where Ender consoles Whatever-the-main-character's-name-is turns into him consoling Ender. Not buying it.

I wouldn't re-read it, and I would rather have done without it, actually.