I also picked up the Hanwag Yukon from STP for $142 after all the discounts. I think I got the last pair of size 15 because I went back to buy another pair after I decided that they fit and they were gone. I also ordered the Montrail Enduro 6mm heat moldable footbeds. I had to trim the insoles for width. I'm very happy with the combination and the way they're fitting. I put two coats of Snow Seal on them before I put them on.
I wore them out in the foot of snow we just had sledding with the kids. OR Crocodile gators were worn to keep the snow out of the top. Feet stayed bone dry and were never cold. Socks are the Costco brand merino wool.
I did have to experiment with lacing to get the heel lock I wanted without a pressure point on my left foot at the ankle flex point. Something like this worked out.
http://www.backpacker.com/gear/5245?page=3. This trick might let me salvage a pair of Asolo boots that never fit quite right that I picked up for $15 at a REI members garage sale.
Besides the trip in the snow, I've had them on in the office just to break them in a little before hitting a trail. My feet though warm are not overheated and not at all damp while wearing them inside.
For the OP, the Kenetreks were on my list, but I couldn't pass on the deal for the Hanwag. My hunting buddy did get a pair of the Kenetrek Mountain Extreem 400g insulated and is very happy with them as well. Only one season in them though so no comment on durability yet.
