Don't expect this to be like Dark Souls. It's quite different, but a great game in its own right.
Try all vocations whenever you feel like it (augments carry over between them), use and experiment with items, don't spoil your first playthrough by using a wiki too much; everything you might miss can be easily rectified in ng+. Don't start with hard difficulty! It makes the early game, which isn't that easy to begin with, even harder, and you'll be overpowered and filthy rich even earlier. If you feel like the game's too easy, consider playing with your main pawn only or even solo.
Have fun and keep us posted.