The first thing I have to say about this book is how blatantly sexist Ian Fleming is and how he projects that onto his central character. Bond is a shallow protagonist who believes himself to be God's gift, and is interested in woman only for their attractiveness and willingness to sleep with him.
Vesper, the female lead, is made out to be an empty-headed simpleton who turns out to be a double agent who has simply be stringing Bond along, although at some considerable cost to her own heart and health. When Bond finds out what she's done and why she did it, he completely compartmentalises her and removes all traces of her from his life. This being a woman who he was willing to marry.
My second comment has to be on how surprised I am that Bond isn't dead. On page 8 of the book, and I quote 'he lit his seventieth cigarette of the day', forget about dying of lung cancer or a bullet, how isn't he dead from smoke inhalation???
I also thought it came across well how different a time period the book was written during than the present day.
It was a good book, but having both read the book and watched the film I have to admit that the film was an excellent version of the story which brought it up to the present day brilliantly. If you're not one for shallow dialogue and would rather see the action played out than painstakingly reading about it it's probably more worth your while just watching the film, something I don't often say!