Return to the Beginning!
Having read all 4 of the Ender books I found this one to be just as awesome in its depth and breadth as a story. It reminded me of why I fell in love with Ender's Game in the first place. While the Ender series became very complex after the first book, this one takes us back to the beginning and shows the story from another point of view. Highly recommended to everyone who enjoyed Ender's Game.