Although I had to return it to upsize from a S to a M - I love the jacket.  The design is great, and I could already feel the warmth just trying it on.

For size reference for others - 36 C/D chest, size 6 jeans from Gap.  Across the chest and at the bottom at my hips is where it was too tight and if I had any type of sweater or thicker top on under it, it would be too tight.  When I stretched my arms out front all the way I could feel it pulling across my back too much, so decided to upsize to a M instead, so that should fit just right now.