Well, I know it's great fun to play...it's like a developed and more complex variant of the Onimusha concept with cool features and wonderful, artistic graphics (yeah, I know Onimusha 4 is an evolution of the concept as well, but I didn't find it too exciting still). Frankly, I think it will kick ass, at least for me. Hope the story is good as well, perhaps something more serious than the quite silly and over-the-top demon plots from the Onimusha games.
Oh, and I also read they will keep the Japanese voices intact, which I'm thankful for. English voices can really ruin games of this kind, I think.