What a coincidence! I'm buying both of these with my grant money! I've tried and owned a sample of L'instant but have only tried the original version of Dior Homme. So for that reason I couldn't say one or the other, and I think it may just come down to personal preference. But L'instant is beautiful, and may be my favorite gourmand. It's a bit sweet, a bit spicy, and all around warm. It has a BEAUTIFUL cocoa note that makes me think of hot chocolate. It's very comforting and just so damn good.