Just got back from a backcountry trip to Baldface, BC. Weather wasn't that cold, so I can't testify to the cold factor as others have, but the comfort, dexterity, and snow/waterproofing is undeniable.
More than once, I accidentally packed the glove with snow, while leaving them hanging off my wrists and climbing up into the snowcat. Each time, I woudl just stuff my hand in, melt the snow, and within minutes the entire inside was dry again.
I also would notice at the end of the days, that the outside was pretty wet, but nothing crept to the inside. Another guy in my group had an older pair of Hestras, and I can't recommend this brand enough.