How much you'll enjoy this book depends entirely on which frame of mind you approach it with. 
 If you approach it thinking you're going to read a thriller (which is actually, err, thrilling), which still seems relevant to the modern day, which has aged brilliantly, and which weaves complex webs of intrigue, you're going to be disappointed. 
 If you imagine Ian Fleming sat in his study in Jamaica writing this book in the early 1950s for a Britain still undergoing rationing and post war austerity, if you can cope with the occasional outbreak of extreme misogyny (and no, it's not just the quaintly patronising type of the movies, some of it is pretty neanderthal) and recognise it for the curious anachronism it is, if you can appreciate the undertone of campness about Fleming's Bond, you'll probably quite enjoy this. 
 The trick is not to take the book too seriously.