This is quite an eclectic collection of stories giving Fleming the opportunity to play with themes and voices which might not have fitted into the novels. Despite the story titles, the film links are almost non-existent.
I hadn't read any of the Bond novels since school, so picked this up without any real expectations and have been charmed by the world and the characters he has created. The ability to switch from the sniper on a tree branch, to the colonial dinner party, to the raid on the machine gun-toting smugglers, to the high-society auction, without a false note, is what makes Bond the character stand out and it is also what makes this collection so enjoyable.
The majority of the stories are written in a simple, almost brutal prose, appropriate to their content, which zips them along nicely. Some of the more descriptive passages about snorkelling in coral seas or climbing in the mountains, and the title story which is mostly told through the eyes of an elderly colonial civil servant, show an ability to effectively switch styles and bring out a more reflective and human Bond than the films ever would.
The stories also feel thoroughly authentic - the casual low-level undertones of post-war nationalism, racism and misogyny ground the writing in its era in a way modern writers wouldn't dare. If you're unable to accept the mores-of-its-time aspect you may find this does grate at times. Fleming's natural and understated descriptions of the world of politics and espionage of that time have that authentic whiff of real experience and he doesn't feel the urge to unload patronising explanations of them on you in a way many modern writers - having put all that effort into extensive research at significant cost - seem intent on doing.
Several of the stories feel like they could have been developed further, I wondered if they were scenes edited out of the novels, but others including the title story stand up well on their own.
Overall I would recommend this collection and wouldn't say that you would need to have read the novels or enjoyed the films to get something out of it.