I read 'Good to Great' and wasn't impressed. It's not bad... but I wouldn't call it "great", either. He strikes me as some sort of "management guru", who is very unhackerish compared to other business books that actually introduce clever ideas.
I know we're diverging from the original topic a bit, but I'd like to make a couple of comments about 'Good to Great.' I enjoyed it solely on the fact that there was a tremendous amount of research and data mining involved. He set it up as close to experimental standards as you could get in that area and pulled out the threads with the highest correlation. Adding buzzwords like hedgehog to it, however, is another story.
Since I have a mild fetish for management books, I've drawn a couple conclusions on the whole genre itself. 'Clever ideas' are subjective. I feel that if a book gives you a straight-line recipe to success, then the message has failed because it has overlooked the nuance and gray(grey?) areas that is associated with running organizations and working with people.