If you like the movie, you will like the book.
If you hate the movie, why are you reading it?
If you like the movie but have problems on it, it does go into further detail about some things, giving background and such.
I'm only about halfway through it, but it's a good read.
Highlights so far (besides what others have said):
*Rosie introduction
*Background of Walter's production
*Yutani and his daughter.. a bit like Weyland/Vickers but different
I'll quote from the book:
"As the first of its kind, there were always 'issues' with David. That is what my team and I have been working overtime to try to resolve. We believe we have done so, but are not yet a hundred percent sure." - page 143