The Good: Great new characters and story, wonderful graphics and music, perfects the DMC formula
The Bad: Same thing we've seen three times already, repeated bosses isn't fun, can get very very hard at the end
I was so jazzed about DMC4 that I thought Capcom was going to revamp the series, but I was wrong. Instead we get DMC3 with a little next-gen flair. The only main thing you'll notice are the new characters (Gloria is a major hottie) and the new story. You play the first half of the game as Nero: A gloomy version of Dante who has a new Devil Bringer which can grab foes and slam them around everywhere. You are involved in a religious cult trying to take over the world through the Savior. While trying to stop the crazy old man Nero is trying to save his love, Kyrie, along with many other people.
Dante steps in half way through and that's when the difficulty ramps up (thanks to not having the Devil Bringer) and having the same exact moves from DMC3 along with all the styles. The game also gets very repetitive thanks to having to beat the same bosses over and over again (about 3 or 4 times EACH) throughout the whole game and this got so old I never finished the game. You have your secret missions (which some are IMPOSSIBLE to beat) and achievements that you'll never be able to unlock, but even for this hardcore this is dull. DMC4 is great (mainly for new comers) but if you wanted something new for the series you'll be lucked out.