FA Nut Mix: 3%.
This is not quite as potent as Hazelnut, but it's still quite strong. It's a bit sweeter than Hazelnut, especially if you exhale sharply. The slower you exhale, the drier it tastes. Try and you'll see what I mean.
I taste hazelnut (actually, more like filbert, but that's nit-picking) and walnut, and just maybe a tiny hint of pecan. A blend of FA Hazelnut and FA Walnut is similar to Nut Mix. If you really like nut flavors as I do, don't hesitate to just get 'em all.
I like Nut Mix as a single flavor; it reminds me a bit of nutty tobacco - just a vaguely, because this is not a tobacco flavor. This is the nut flavor I'd choose to use with tobaccos.
It's easier to mix with than plain Hazelnut and more interesting than plain Walnut. I use Nut Mix in candy bar recipes with different combinations of butterscotch, caramel, cocoa, chocolate, nougat, a little fresh cream. It's awesome in Torrone, very authentic Italian candy flavor. I love plain Nut Mix with just a dab of Honey (careful - that's a strong flavor) or hint of Maple Syrup to satisfy my sweet tooth. I put tiny amounts in cookie and coffee recipes and Tiramisu. A little added to TFA's Peanut Butter it reminds me of a nut butter from Whole Foods.
If you like nuts, you'll use this often. If you dislike hazelnuts, skip it.