Well... I really wanted to adore this book. And while it was super good, and nearly five stars, I had to knock a few stars for various reasons. 
 The Good 
 Buttercup and Westley? So wonderful. I'll admit I was a terrible bookworm and I watched the book first. BUT... I had no clue the book or the movie existed until I watched the movie, so... fair? Fair. 
 I've noticed that most people have watched the movie and haven't read the book. A lot of people don't even know there is a book. So if you don't know... there's a book! :P I've heard that people say that if you read the book first, you'll think it's better, but if you see the movie first, you'll think that the movie's the best. But, for me, I liked the book soooo much better, storywise. Mostly because there was more backstory, which included a bunch of funny stuff. Basically everything Fezzik said made me laugh. ;) And the characters were much more developed, too! The movie had to take a bunch out. And this book was just AWESOME. 
 And, also, in the movie, the kid has a Captain America toy on the shelf behind him. Seriously. Go rewatch it and look for it. AWESOMENESS. 
 The Bad 
 Here's my problem with the book. The author, William Goldman, wrote it as if he was abridging the book The Princess Bride by S. Morgensten. Most of the time, his little comments about the parts he cut out were okay. But then he would put in a little anecdote that had no impact on the story, and I skipped over several parts because I didn't really care about that. I read this book to read The Princess Bride part, not the "how William Goldman learned about the story and what happened to him" part. The first thirty pages was his introduction about how he came around to abridging the book. While that was somewhat interesting... that's not what I wanted to read. It's an interesting idea, but... it just lost me. (This is not including the two extra introductions - the one for the 25th anniversary edition and the one for the 30th anniversary edition, which is what I have.) This is like author insertion in stories... except the author is literally inserting himself into the story and interrupting it. *sigh* 
 And then the ending. Spoilers: (view spoiler)[There's this story that I read in creative writing class a long time ago that you might have read as well, called The Lady and the Tiger. Well, this book mentions that at the end, for good reason. The last two paragraphs of the "book" (not including Goldman's commentary) take the book from a fairly happy ending like the movie to... OH GREAT WHAT'S NEXT WAIT NOTHING?????? and I didn't care for that. (hide spoiler)] 
 The Ugly 
 Language: Use of (view spoiler)[ s*** once, b**** once (hide spoiler)], and "Jesus" is used in vain. 
 Romance: Westley and Buttercup love each other, so there's embracing and one kiss at the beginning mentioned as "the perfect kiss". (view spoiler)[Westley refers to Buttercup's "perfect breasts" at one point. (hide spoiler)] 
 Violence: Quite a bit of fighting and unconsciousness. (view spoiler)[Westley knocks Fezzik and Inigo unconscious and kills Vizzini. Westley is tortured and killed. Inigo is stabbed in the stomach brutally and then kills someone. Buttercup nearly commits suicide. (hide spoiler)] 
 Other: (view spoiler)[Someone is brought back from the dead using a combination of hexes and spells, although that's mostly glossed over. Technically, they feed the person a pill that brings them back to life. (hide spoiler)] 
 I really loved this book, and I might reread it again (maybe several times?), but probably skipping over all the commentary. It's definitely creative, just didn't work for me. I definitely recommend it, especially for fans of the movie!