When I first put Rive Gauche on I thought it might be a complete dud on me because it seemed to completely "disappear." I just wasn't getting any notes coming off of me at all, so I thought: "okay, this is way too light for me and I can't wear it. So much for floral aldehydes. Oh well. *sigh*" Then, after maybe 20 minutes or so I started to notice the air filling with a beautiful floral scent, and pretty soon I was just completely enveloped in it! This is a gorgeous floral aldehyde which (in my opinion) was much more "well done" and balanced than Y. In the case of Y by Yves Saint Laurent, I felt that some of the notes were a little too "sharp" and "harsh" to the extent that they were irritating my nose! With Rive Gauche, I don't get that at all despite the aldehydes. It's just a divine perfume, both in the bottle and on my skin. I highly recommend this one to pretty much everyone, there is not much to dislike about this fragrance. It might possibly even be one of the best floral aldehydes ever made.