Looks really neat, though I wonder how it looks when you scroll down.
It does stick, when the top header is completely out of the way, it sticks:Looking swish and modern man. I'm liking it (design wise) .
Only feedback at the moment is to do with the UX - navigation to pinpoint it. Think about it.. User clicks the link and scrolls to where they want, right? Then they're left with no navigation to guide them. My solution would be to either stick the navi which I think would suck for the design OR have the navigation go to the top left of the side (maybe in a burger menu form) <- this could help with responsiveness as well.
Sorry its picky as fuck but its just an idea. Overall, looks nice. It'll be nice to see the code and so on soon.
Ah fair. Couldn't see that from the screenies. Nice work bud - maybe some box-shadow on the top bar? ;pIt does stick, when the top header is completely out of the way, it sticks: