Tried it last night.  Runs smoothly without changing settings (except resolution from 800x600 to 1024x768). [Core2 Q6600 @2.4GHz, 4GB RAM, Radeon HD 5670]
Game required 14GB free so I spent a while clearing out poo poo, though in the end, it only used around 10GB of space.
Game looks interesting - a third person shooter.  Does try and get you into the story as you do actually have to answer questions (or you can just answer blindly) - along with the ability to customize your character at the beginning this does sort of give a slight RPG feel to it.

But me being me, I probably will never finish it, or even look at it again...