Well, it's Peter Jackson's favorite game, if that means anything.
Seriously, I really liked it. The gameplay is varied, well paced, and just plain fun, the art style is characterful, and it has great music. The voice acting is on the whole excellent as well. It's the very opposite of "hardcore," but in a good way. It's also not very long. I definitely recommend you give it a spin; if you find that you don't care for it after an hour or so, then all you've lost is about an hour.
Note: you might have to tweak your graphics acceleration settings, or you'll get all kinds of weird artifacts, such as Jade's eyeballs floating about a foot from her head, or that sort of thing. I don't recall exactly what I had to change to fix it, but it was one single setting related to performance, and it was via the nVidia control panel. Other than that, the game was rock solid.