I think in Diablo 2, they got almost everything right. It's almost as if it can't be remade as perfect as they did back then.
My only complaint is it feels too easy most of the time, and I cannot make it harder until I beat the campaign once. My long experience playing D1 and then D2 are probably showing though :)
Go in expecting a decent game in that style though and you'll enjoy it a lot.
Heh, the irony.. I am working on a (what I deem to be) quality one-purchase game.