I've been really happy with these pants so far. They match with pretty much every jacket I have and look great. I've gotten quite a few compliments on them and additionally how much better they looked than the Burton jeans.
I'm a big fan of the 686 fit however I had to go up to an XL in these. I'm 5 9' 190lbs and the larges were way way to tight. The XL's fit great however and are very comfortable.
As usual with 686 the venting is spot on and help keep you cool. They have sufficient insulation, so I would imagine come spring they will get worn quite a bit less. It won't take much to overheat and a silk layer was plently even on a cold extremely windy CO day.
I did notice however that snow seems to stick to the material much more than your typical pant, but I'm sure that lends to the jean look. Will that equate wetting out of the material later on? We shall see, but as for now great job 686!!