Delphineas

So this is the second game I've backed. However I'm not sure how I'm going to actually get the game. I have PoE1 on Steam, would like to get PoE2 there for consistency. Are we getting a direct download? A product key for steam/GOG? Do we need to sync our accounts with Steam?

Well, that might suck. So far I've always played a tankadin. Pick up Zealous Endurance (Because 2h Pallegina takes focus) and on really tough fights have Durance toss up armor of faith. But what I'm reading here is those 2 DR bonuses don't stack? Aw...