I am sitting around 40-50 hours (work chews up so much of my tiiime), and my sister nor I have defeated the second boss yet. We been mostly enjoying the exploring, building, and just the atmosphere of the game. Honestly when it comes to a sandbox titles, which is what Vaheim is, a giant sandbox, there is no right or wrong way to enjoy something.

That is why it is called "a sandbox", there is no right or wrong way to play in the sandbox, beyond just having a good time however you enjoy it.