I'm a winter jacket enthusiast! Since I've retired, I've gotten serious about my fitness, and walk almost every day, year round (temps vary from 0 and below, to over 100). I needed gear that supports cold weather use. I have wool and polartec alpha for layering, and down for the top layer (with a rain shell for days when it's both cold and wet. I have 2 Westcomb hooded down jackets for the really brutal days, and now I have the best option for all the rest: the Marmot Quasar Jacket.
The sizing is good; allows layering if I want, but also fits well for basic warmth when I'm running errands. It's very light, and very warm. Something about the down quality, the fill weight, the amount of down, the outer fabric, or the combination gives it a warmth factor that I haven't found in other jackets (and I've tried a lot of them!). I don't camp in winter, or ice climb, or ever do much wilderness hiking in winter -- lots of time on wintery suburban streets, though. I'm satisfied that this will be a jacket that will see lots of use, and will last me for many happy years.
This review was written in the old system and had content requirements that are different than reviews written today.