Lurwrote a review of Arc'teryx Alpha LT Pant - Women's on March 20, 2007
Gore-Tex rocks! I sat in slushy spring snow without fear of a soaked bum - cold yes because these pants are not insulated - but never wet. The full length zippers on the outside of your leg are great for venting and do not leak at all. I was concerned about the lack of separate gaiters around the boot but the elastic cords pulled tight and stayed tight, creating essentially the same effect with less material.
In the back country, I had some trouble with the plastic buckles that connect on each side of the waist coming undone under my backpack hip straps. When I wasn't wearing the suspenders and had the zippers open for venting, the pants sometimes fell down. With the suspenders on I was fine, and again this only occurred under the hip belt of my frame pack.
My only warning, these pants are not for the fashion-concerned. The gathered waist gives you a lovely dumpy butt look, especially if you have the zippers open for venting at the top.