Taylorwrote a review of Arc'teryx Thorium AR Hooded Down Jacket - Women's on April 22, 2015
I bought this jacket in the beginning of winter, and I love it. I live in Ohio and it gets cold, but this jacket kept me warm on my walk to school each day. I brought this with me up Mt. Washington, and while I (thankfully) didn't end up needing it, it did make a good pillow (we arrived at night and slept in a shelter). This jacket packs down small and is the warmest jacket I've ever owned.
The fit was a bit weird for me. I'm 5'3" and 110 lbs, so I got a size small. It fits, but drafts tend to come up if I wear just a t-shirt underneath. If I wear a thin fleece then I am extremely comfortable. It also fits well underneath my shell.
I would definitely recommend this if you live somewhere cold. I am a baby about the cold, but this jacket made my winter easy.