Wow awesome question, thought i'd reply seen as i own 3 bottles of the stuff lol
Basically in a nutshell, its a huge leap, its massive. Usually people trawl through loads of fragrances over the yrs getting used to all kinds of different notes and styles of fragrance.
Thierry mugler mostly focuses on gourmands, A*men is caramel sweet with chocolate notes, pure malt is literally dark berries with caramel and a malt/whiskey vibe. A Taste of is Coffee, chili pepper, cocoa, patchouli.
But yeah im getting sidetracked, when you spray it (ignoring the notes) you basically get a coffee/cherry aroma which is slightly sweet and strong. It smells a little dusty not too clean, cool water is a hell of a contrast lol.
I think because you'd be buying it blind, its a complex smell and its quite a lot of money I'd seriously advise a test if you can.
Dont let me put you off though, its a beautiful fragrance which i totally love, but if i was 16 and came across it i'd prob be like, WTF ?? lol.
If i had to recommend something a little different but designer it literally depends on your tastes and what smells appeal to those nostrils! Back in the day my first 2 frags were Joop! homme and Armani Homme, looking back they were kinda grown up, but i still enjoyed them. If you wanna smell young then Abercrombie/Hollister could be the way to go.