The other take on the survival issue, and thats what the stove is to me, where an unexpected severe change in temps hits, is that I'll erect the shelter first while grabbing wood, and then inside I can take my time putting it together.
OR I've got sticks piled up just in case and the stove in a pack just in case it changes...
Nothing like being clothed for 20 and above and a freak storm hits to drop it well below and dumps snow... And that can happen on backpack hunts real quick.
I have one of their box stoves, I never cook on it, its used to heat a larger tipi. We have iso butane to cook with.
Jeff
