If it's crap ... We'll tell you
I don't get the craze over Diablo to be honest. I do think it's a decent enough series but the hack-and-slash got boring eventually because it's just clicking the mouse button like crazy. From what I've seen of 3, there's nothing new for it. I felt Magicka done it right because it got really hard, had alot of abilities for you to use in different ways and you were endlessly swarmed with various monsters.