I have one. It’s fun, it’s neat to make fire in a way few know how to, BUT I would consider this a backup to a backup to a backup. Maybe it’s just me, but I find the fire piston to be an inconsistent fire maker. I can always get fire, sometime 2nd or 3rd try, sometime 10th or 15th try. Flint and steel seems more consistent, usually fire first time. I have had better luck with char cloth than with tinder fungus as the tinder in the fire piston.

If funding is the limiting resource in your outfitting endeavor, I would NOT make this apriority purchase personally.