In reply to ModerateMatt:
I've got one, anything in particular you would like to know?
It's very heavy, as to be expected, but incredibly warm with lots of nice features. I especially like the drawcords in the handwarmer pockets, can be tightened to have less dead space inside the jacket.
I've got one in small and it comfortably fits over a baselayer, fleece and shell. I didn't feel the need to size up for layering.