I love this game, and I'm frustrated by this game. Finally, a game has come out that looks like the Star Wars movies. Since I love the movies so much, the story for the game seems a little ridiculous to me at times, but it's good enough to take us along on a fun-to-play adventure. The strategy guide, however, is not as in-depth as I would have liked. Sometimes things aren't explained very well, and it doesn't tell you much about everything available to earn, as in costumes, lightsaber crystals, etc.
My biggest complaint is about the Star Destroyer sequence. I've read many reviews of the game that describe it as the toughest sequence in the game, which it is...at first. The first time I did it took about half an hour. Once I caught on to how it's done, though, my second time took about five minutes. But here's the complaint: The book doesn't help you with this. It just says to follow the onscreen prompts (which aren't very helpful either). (Sigh)
So, the book is very helpful with instructions of how to get through each level, and exactly where to find all the Holocrons, but I'm afraid the only way to really advance in the game is to just play through it a lot. There are a lot of unlockable achievements that the book hardly describes, but then it doesn't tell you what achieving them even means. Do you gain power? Do you move faster? I don't know. It's helped me learn my way better around the maps, but the rest is down to playing experience.