Horrible. I threw it out the same day I received it - this experience is a good reminder that I have no business ordering fragrances online that I have never actually smelled, especially from a place that doesn't accept returns. I bought this because I am currently obsessed with Black Opium and I wear it every day. I loathe all other YSL fragrances, including and especially original Opium - it's like a musky, spicy, cinnamon-y old lady. Contrast that with Black Opium, which is one of my favorite fragrances of all time. My one and only issue with BO (lovely initials for a fragrance!) is that it's too heavy and strong for summer. When it's really hot out, BO feels downright stifling. So I went searching for Black Opium's lighter, brighter, possibly more floral cousin. And that's how I ended up with this dud. Where Black Opium is a warm caramel vanilla gourmand, Nuit Blanche is a powdery white musk disaster. It has just the tiniest, almost-imperceptible smidge of Black Opium at its base, but not enough. And all the rest of it is so bad that it takes me right back to my loathing of all other YSL fragrances. Like all the others except BO, Nuit Blanche seems destined for the vanity of a rich old lady who will no doubt vote for Donald Trump. Like I said, horrible. For now, I'll stick with Black Opium dry oil spray, with a smidge of Bobbi Brown Beach layered on top of it. That combination, while not perfect, is 1000x better than Nuit Blanche as my new summer signature.