I rented it, and I wasn't pleased. 'Tech demo' was referring to how all the facial tech was for the cinematics, not really outside of that. I felt it was a stripped-down and hampered GTA game with simplified puzzle solving, and the game made it too easy to succeed in those areas. Yes it does mimic Noir style, but it felt like a idle movie, similar to Dragon Age. Some people will enjoy it. I'm just saying don't fall into the hype, and look into how the game really is, instead of expecting GTA freedoms and non-linear gameplay. The closest thing to that came from near-pointless driving and optional item searches, making the big L.A. area just another checkmark used for advertisement on the box.