That is where it really stands apart- while it can get hyper-specific, its consistently mixing novel content types. Some has appeal based on a look-alike type of matching, others to general appeal, and more still to new and small creators. Once it has a sense that you're in a session you're not likely to abandon it takes greater risks on trying fringe content. Let me put it this way: give it a solid 2 weeks and you'll start discovering new parts of yourself.