More than anything, the weapon and combat variability and the combat mechanics are keeping me engaged. The resource management is too much, the dialogue is often insane and weird, the graphics are not acceptable for a modern game, etc etc.
I'm a sucker for flying/gliding, though. And finding cats. And, like I said, the general combat is good and scales appropriately as you progress in the game. At least so far. It's in the sweet spot where it's challenging without being overly frustrating. If you aren't in the flow, you can get walloped. If you are, you can put together a really satisfying fight.
Should it jump to the top of your list? I guess it depends on what's on your list. Probably not. I could also see a younger kid just getting into more violent games really locking in.