one of my favourite frags 'Kouros' by YSL uses ambergris (or synthesised)
shame that over time the formula has changed so much.
as per descriptions..it really used to smell like "sweat"/"heavy"...and has changed to much fresher and cleaner.
The Kouros you can buy these days (white instead of metallic shoulders), is heavy on coriander with barely any "musk" and bears little resemblance to the "scent of the gods" of the 80s and 90s. I still have multiple bottles from the 90s which are as good as ever, together with Kouros Fraicheur from the same era which is another Pierre Bourdon masterpiece. YSL perfumes from the 80s and 90s were legendary.
It's definitely in the same league as Kouros, and much more wearable in the summer.
Kouros Sport (which I also have) is not as good, as it doesn't project as much and all the notes are greatly diminished as if they've been diluted.