Really, really comfortable.  These boots fit perfectly.  I was worried they'd be too narrow, especially on a hike, but they're well-padded and very comfy.  These boots are firm enough to give good ankle support, but still cushy.  I wore them straight out of the box, didn't need to break them in at all.  I've worn them in rugged terrain, and they're totally waterproof and warm.  A really great purchase!!