So these broke in quite quick - I did 100miles in the Sierras with only 25 miles on the shoes beforehand. Not a single blister even with a few 20 mile days. The downside for me is that they are normal width, to a touch wide. For my narrow foot, a higher volume shoe. I 'think' I was able to fix this with an extra insert, but I haven't used them enough with this addition to tell. Gore-tex is superb: did a several creek crossings with no issue. For how lightweight they are, they still seem quite rigid and solid. They also have a touch of a sneaker type feel -- I actually jogged 7 miles of my trip in these and they felt fine. I'm just hoping my extra inserts work -- I was having my toe slide to the toebox on downhills without them:(... which resulted in a numb great toe.
So, I'd highly recommend for anyone who has a normal to wide foot. If you're foot's narrow like me, you may want to check out something else -- including women's boots. If anyone has a great recommendation on narrow boots, let me know.