Argan oil for hair

Everyone seems to be raving about argan oil recently.
It comes from a tree and it's the ingredient in the Moroccan Oil brand products, and is supposed to make your hair healthier and shinier.

I've been wanting to try it, but I'm cheap, and I don't like spending $20ish on something I don't know if I want.

Today, though, I was pointed to this oil on Amazon and you can buy the 2oz version for just $4.99, so I'm considering it.

$4.99 Agadir argan oil treatment

Have you tried any argan oil stuff for your hair or skin?
Was it worth it?