I just finished Ender's Game. The story pulled me in from the first few lines. I don't typically read much science fiction. But this does not feel like science fiction. Some years ago my friend Jeff VanShaar told me about the Ender's series, and how in the original book Ender creates an orientation for the zero gravity battles ("null gravity" in the book). I didnt think much of his suggestion at the time but I should have read it then.
I fell very much like Ender. I was the kid in school who was different than everyone else, not that I was necessarily smarter (maybe I was) just very different. I have been in null gravity although not for battle nor game. I was set by teachers, I was the kid everyone resented. I was picked on by groups of kids. However, unlike Ender I did not watch people closely enough to figure them out, I was more clueless as to people and I did not defend myself as I should have done. Not to the extreme Ender did but more than nothing would have been good. I can strongly relate to Ender Wiggin and the events of his life.
So the idea of a hive society and alien "bugs" seems a bit contrived or over simplistic. I did like the idea of the "desks", This was written before the internet was more than a dozen computers hooked together. Great forsite by the author. I actually did something like how Ender sent the message as if the other boy had sent it.