So... holy cow that's an impressive piece of work. The game plays almost exactly like the "normal" God of War titles, but the really amazing thing is it actually looks almost as good and that's even downplaying it a little. It actually looks just as good as the PS2 games. I'm sure part of it is that the smaller screen with a larger refresh rate lets them get away with a little detail and maybe the environments are a bit smaller, but damn it doesn't feel that way while you're playing.
So yeah, check out the demo if you can. I think it's hard not to be impressed by what they're pulling off here.