I was able to download the demo for Star Wars: Force Unleashed, one of my "Must have" games this year (along with Soul Calibur 4). From the demo, it looks to be as fun as the trailers made it look; the graphics are fantastic for the most part; although the apprentice's eyes look kind of dead. I think they did his eyes better in Soul Calibur 4 than the actual game he's in.
The other thing that's weird is that when you use the lightsaber and make contact with the rebels or stormtroopers, there's a slight pause, almost as if the framerate dropped suddenly. However, the way it's done, I half wonder if it's supposed to be a style thing that just doesn't really work out. Either way, I hope it's fixed by the final version, as it kind of makes using the lightsaber a pain. It's not a huge pain, but it does make the timing a bit off.
I'd also prefer if the lock on for the Force powers was done by a button rather than what you happen to be looking at. You get used to how it's set up and can get better at grabbing what you want, but it's not quite as intuitive.
Still, those small things aside, I was pretty impressed; hopefully the rest of the game will be as fun (and OMG; Starkiller brings down a Star Destroyer by using only the Force in the trailer after the demo . VERY cool.)