Here are a few of my thoughts on the movie:
1. Much better than II and III
2. Acting was superb throughout.
3. Really deepened the plot of the main character, made him much more interesting.
4. The ‘main’ plot was really interesting and pretty unique.
5. The subplots were pretty great too.
6. Use of flashbacks etc was done tastefully and sensibly.
7. Traps were downplayed in this one, which was a really nice break from the others.
8. Good movie, thoroughly enjoyed.