Initially the boot seemed tight near the toes, pushing down on the foot at the ball of the foot region, but after a couple of hikes, it became roomier and molded nicely to my foot.  Very waterproof which in warm weather is a bit too warm (doesn't breathe well), but in winter shouldn't matter at all.  Great traction in loose dirt and rocks.  The high ankle provides support so my chronic ankle sprains which surgery did not fix, have disappeared.  The one thing I don't like (and it's common to most boots) is the shoelace hooks at the top are sharp on the edges and end up tearing the shoelaces after about 400 wears.  Of course, Keen boots come a half size smaller than most shoes.