In a word, intoxicating, which is intended as a high compliment. The fragrance has a nice level of complexity that isn't as challenging as "C" (full disclosure, I own "C" and love it), and from start to finish, the transformation is very subtle, rich, and elegant. This exudes a level of confidence and warmth that would be best suited for more formal occasions or colder weather, as those conditions will allow this particular scent to fully open and blossom. This is not for those faint of heart or not committed to its luxury price point. Some will argue that this is far too expensive, though it's comparable to other pure perfumes. As for longevity, it will last well into and though the next into the next morning -- you'll be awakening to the smell of "X" on your pillow. If you needed to pick an elegant, tasteful, luxurious fragrance for a connoisseur, this would be high on my list. Someone suggested a comparison to Penhaligon Opus 1870, with which I struggle -- 1870 lacks the longevity and overall quality, and has no silage, while X is the polar opposite. I honestly prefer this to "C" and have no qualms about a strong recommendation.