Just got back from a week at Vail and, man, did I put these things to the test. The first three days consisted of very cold temps (-15F) with 15-25kt winds along the ridges and shoulders of the back bowls. While my old 2001 MH shell felt like I was wearing cheesecloth, these pants were fantastic. In only the worst conditions (riding up Orient Express in -12F temps and 20+kt winds) did I feel a little cold start to seep through the top of the zipper seams.
These conditions were followed by two days of beautiful, sunny weather. My son and I went nuts in the back bowls and the Blue Sky back country skiing everything from fresh, moguls, crud, wind pack, and more pow pow than I could have asked for. We skied from opening to close every day and never once did I get hot or feel crowded by these pants.
I usually washed/dried these things each night and they didn't fade, shrink, lose water repellence, or their moisture wicking properties.
I'm 6'0", weigh 210 lbs, wear size 36" waist / 33" inseam and the Large/Regular size fit perfect.