Darn, this scent really teases me so much.
On first wearing I thought the opening was a hideous synthetic smell of plastic bags, on second wearing it was just a fresh sharp citrus/grapefruit opening. Now I've worn it several times and the opening always changes between these two. Through the heartnotes it mellows, gets softer and woodier with a pinch of nutmeg and the drydown is just a lovely cozy dry and nutty sweetish vetiver haunted by oakmoss. The vetiver in this scent somehow seems more cleansed or washed, as it doesn't seem as earthy as other vetivers sometimes turn out.
Compared to Guerlain's Vetiver I'd dare to say that the drydown is somewhat identical but the Guerlain is more spicy and natural without the slightly synthetic opening.