Ranked in these QuestionsQuestion Ranking
Compositing and previewing 1080p video works at a full 60 frames per second on moderate hardware.
Pro Create Clips From Source Files
Allows users to create clips of a specified portion of a source file from the preview window.
Pro Powerful Effects
Take the BlueBannana effect for example, it alone can both color correct, color shift, color mask (think chroma key), and give live statistics on the current frame.