They always say that with twins, one is cool and the other is sweet: Layton is of course the cool twin. Détour Noir tries to be confident and cool at first, but since it doesn't succeed, it ultimately relies on its pleasantly sweet side in the drydown. "Good for that!" I must say. However, I understand that one might not associate the scent with its twin individual during the initial top notes. But after at most 1 hour, you have what you expect.
For 20 €, you can't go wrong here. The scent comes in terms of longevity, intensity, depth, and uniqueness to about 90-95 % close to Layton; for the remaining 5-10 %, you just have to pay the 270 € premium (which I can understand as well).
So it's quite simple: Everyone who loved Layton in the perfume store will adore Détour Noir at home!