Not very breathable and with limited venting potential, hood is quite minimal which could be a factor in serious winter sidewinds, also relatively short cut and lacks pockets. I've used one in winter for biking and running, though again I'd prefer something more breathable, or even a windproof in those conditions.
For general walking in full winter conditions, I'd prefer a jacket with a more substantial hood and better breathability. It'll keep the rain out for sure. The inner surface does get slick with condensation, which is an acquired taste.
I've climbed water ice in the Adrenaline pants btw, and they did lose an argument with someone else's crampon points...