I never really dug suspense movies because I either figure out the ending right away, or I find the ending not to my satisfaction. The Conversation was the first suspense film that really felt like that. A suspenseful tale. Plus, it has one of the greatest twist endings I've ever seen.
I am not much of a Tarantino fan. Many may hate me for saying this, but I find about 45% of his dialouge to be ultimately pretentious and boring. So, it was a nice break when they stopped talking their gabs of and went for some good old kung fu action. Altogether one awesome movie.