Don't much care for the book. Its undercooked and the plot just isn't all that interesting. It's almost John Gardner-esque really! The fact that it follows OHMSS and YOLT makes it suffer even more by comparison. The first couple of chapters with Bond brainwashed are pretty good, but otherwise, Ian Fleming's James Bond series ends with a whimper.
The movie on the other hand, well its a good bit of fun. Very camp, of course, but Scaramanga is a great villain, nice use of locales, and er, JW Pepper is in it. I rest my case