Yeah, I don't get it either. I used to have Grey Flannel, and quite frankly I found it subdued and a gentle violet fragrance. It was not one that leapt off the skin. But it wasn't one I found soapy... I kind of found it alcoholic in a way.
I also don't get the comparison to Fahrenheit that is made on the review board. Fahrenheit (coincidentally my SOTD) has a strong honeysuckle note. Grey Flannel has a strong violet note. note: osmoz.com states Fahrenheit has a violet note, but no honeysuckle note. Eh bien... The Dior website confirms the basenotes pyramid though.