I have one. Quality toy thats a joy to own. Great conversation peace. Just like my K&M match case.
One quibble that I have with them is that without a pick getting the ember to tinder can be deuced fiddly. Not sure that I would care to attempt it in a shivering hypothermia situation. I do wish that Dan would fit a pick as standard.
The one thing I always try to remember to do is fashion a small twig pick as I am making my tinder nest. The bone pick Darryl added to one of my pistons is very nice though.
I have also just transfered the coal from the end of my piston in-situ to char cloth or a larger piece of tinder fungus, then blown up the tinder nest.