Technically the game looks really impressive but I'm not sure if I'd actually like it since I'm not a fan of most of the different genres that are used. Maybe with them all combined I'd enjoy it though. I'll definetely buy it if it gets good reviews anyway.
You can find the whole of that video on this website quite a bit down the page, but you have to register (doesn't take long).
http://www.pqhp.com/cmp/gdctv/