Perhaps I am just a idiot but this book was pretty hard to read. I know the original is written in german, not english which is probably why it's a bit complicated. In terms of the message of the book; it was quite eye opening. True freedom of will doesn't exist in my opinion, only the grossly oversimplified version of it. I feel that because it was a little hard to read it might not be suitable for the average reader.
(This review is probably not the best as I am just an average teenage reader and not someone who's very invested into philosophy)