I rented it to try it out, and it's ok. Nothing great, but not even close to the worst game I've played.
If you're annoyed by little things like repeated audio clips, or repetitive hack 'n' slash gameplay, you'll probably find a lot to dislike.
As far as the mechanics, everything seemed to work pretty good. Sometimes reassembling your body doesn't go as smoothly as you'd like, but it's by no means "broken."