You can think of the "classes" like in DS, yeah. They just determine your starting character build.So it's more like Demon's Souls or Dark Souls then where you pick what you want to know early on and go with that? Or more like a hybrid of Fallout and the Souls games in that you can pick some unique quirks for characters (haven't poked TOO heavily in the starting customization) but can mostly do whatever else beyond your starting template?
Edit: Damn!