Functional. I can drive my manual Xterra in these boots! Pac boots are hard to find that will still let me drive a manual, but these function perfectly.
Fit. I normally wear a size 11.5. I bought the 11. They fit well even with a pair of super-thick Smartwool socks. [For comparison, I wear (in other brands): Sidi 45.5; Vasque 11.5; Sperry 11.5].
Warm. These keep my feet warm, even down to 0 (while wearing lightweight wool socks).
Fashionable...ish. They look good. The problem, in my opinion, is that the felt liner goes all the way to the top of the boot. This means that you can't roll the tops down/let them splay out a bit, without the felt inner boot showing. You could fix this by trimming the felt boot, but that lessens the functionality of these boots. This is the ONLY reason I would give these 4 stars.