I've been around perfumes, etc. a lot in my life, but this has a truly expensive essence.  It is powerful enough so that you can apply it very sparingly and it lasts a long time.  I can imagine it could be over-applied, but that would be sad.  Just a tiny dab here and there and you're going to be noticed close up, but not from a distance.  My nose is not refined enough to describe the scent but I will always recognize it from here on.