KotoR is my favorite game of all time, I like it more than people should like games, and I've thoroughly enjoyed the book. It seems some opinions mirror the "George Lucas raped my childhood crap of the late nineties".
Your entitled to your opinions but it has followed the plot points outlined in the loading screens from both games, I dont see the problem myself. I will admit that KotOR II is not how I envisioned a continuation of the original, but I enjoyed that too.
Great Book IMO.