I really liked this boot - at first.  It got me to some nice places in comfort, kept my feet dry, and did well.  But LONG before the soles got too worn, the soles started to separate from the boot!  I would think this is a defect - the bonding between the boot and the sole should not be this bad.  A friend of mine with the same boot had the exact same problem (hers completely came off during a hike, and had to use duct tape to hold it on for the trail out!  I went here and see there are others with the separation problem - and it looks like this happens all too often - this is not acceptable!  I would be OK if the soles wore out, but not this...  This is far too expensive of a product to be made this poorly.  Shame!