I love this!! It is my favorite and I wear it alost every day. I agree with Margi, the longevity on my skin leaves much to be desired, so I spray and respray. After zooming through the first bottle I went on a new hunt for a scent with more staying power, found Golconda by JAR, and now wear them both (seperately). Which do I prefer? the 31 Rue Cambon!!!
I have worn this for many years, always receiving compliments from men an women alike. Funny you mention YSL because that was one of my alternate favorites.