Don't have to break them in really which is nice.  They run BIG in size, I would go a half size smaller than normal if I had to order them again.
They seem to be providing a nice balance of support for arches and ankles without too much stiffness.

UPDATE 8/2014
So I am back to buy my third pair of these shoes.  I keep buying them because I know they won't cause me plantar fasciitis like most hiking shoes do.  However, these boots do NOT LAST LONG ENOUGH.  Second pair to have the inside of the boot wear through at the heel and then the stiff plastic inside rubs the back of your heel raw :(

So these boots are great for problem feet, BUT they only last me 5 months with 4X a week short to medium hikes.  Bummer.