Despite knowing the twist at the end already (I shouldn't have watched the movie first), I enjoyed this book. That being said, It's an interesting point of view to know the outcome and see the clues the way Poirot does.
I did find that this story unfolds in a way more linear fashion than other Poirot novels, which of course is because they are stuck in a train with nowhere to go. However, I find I prefer it when the story is not quite so linear which is why I didn't give it a higher rating. Regardless, I recommend this book to people who love reading mysteries.