At first spray, it'll likely come off as watered down, synthetic or cheap. And you won't be surprised by any of that, after all, you won't have paid much for it.
But then it sneaks up on you. It just needed a little bit of time to develop, that's all.
The sillage & longevity of Barbara Bui is actually really hard to describe. It melts into your skin rather than dominating it, and almost fools you into thinking your skin naturally smells so sweet and soothing. It's indeed a 'quiet' and understated perfume, and it takes a little bit of patience to appreciate the payoff. If amber happens to be a favorite note of yours (as it is mine), you must do yourself a favor and try this one out.
Lastly, I must admit - after my first spray of Barbara Bui, I thought to myself, "Wait, did I just spray Silk Way?"
Though, after finally trying them side-by-side, the differences are clear. Actually, I think the color of each fragrance explains the difference quite well: Barbara Bui is a sensual warm amber & woody blend with a powdery quality; Silk Way seems 'cooler' - a light incensey musk & damp, dewy cedar. Both are worth trying, especially for the incredible price.