While I think this would be a great idea in the right hands, I can't help but notice a few things:
-They should've used a much more creative visual style, something similar to Gustave Dore's original illustrations.
-Where the fuck is Virgil?!
-I don't remember that much sort of action; it would've been better to go less with the "action" part and more with the under-used Myst-style "adventure" part. Fighting demons is just a cop-out to save themselves extra brain muscles.
-How they hell (excuse me) do they expect us to believe Dante is a beefcake cross/spear bearing fighter? Dante was (both in real life and the Commedia) a frail, bookish type.
-There isn't that much architectural construct and environments in Inferno; it's mostly dark forests and fiery plains and cold caverns.
-Most of the shades are human in appearance and nature. Here, they just look more Doom/Oblivion clones.
-Again, the fact that there is any fighting whatsoever, turns me off.
This is really sad for me, because I always thought that if the developer would be the sort to take risks, it would be a stellar and unique game. As it stands it just looks some dumbed-down, grittier Devil May Cry. *sobs*