I've had them for a bit over a year now. These pants are bomber.
I use them for back country skiing and any other snow or cold weather activities. I've only got one complaint so i'll start with that. The suspenders are velcro-ed on, and when you wear a pack, it really pushes the edges of the suspenders into your back. Not the most comfortable thing, but was easily fixed with a pair of suspenders from an old pair of pants.
Now for the good- which includes everything else. They are super waterproof- good to go in wet snow, and have even proven themselves in rain. The gaiters fit well over skiboots, and material around the cuff and on the insides of the lower legs is pretty tough. theres a few cuts from my edges, but they havn't gotten any bigger over time- good rip-stop. The thigh pockets are pretty big, well placed, and hold whatever you need; and the hip pockets are good for a pocket knife, lighter, or something of the like. The zips on the pockets and along the outer seems are all welded and tough. The side vents open straight up, no mesh, for unrestricted venting- just dont forget to close em up before the down. The material is soft- not like a traditional softshell- but much more pliable than a hardshell, and combined with the thin brushed fleece, theyre super comfortable to wear on their own or over a layer. The cut is nice, and keeps everything functional. Another steallar job by Mammut.