mental
it has everything - great story, great graphics, solid gameplay and incredible value.
it took me about 25 - 30 hours to complete, so lots to get through.
it's hard, but not frustrating. and the story advances quickly. i like the whole 'dark' theme they have going on also, the whole game pretty much just freaks me out. i would reccomend it to anyone in their right mind, or on acid. good luck in your quest of buying it!