When it works.

I'm afraid I get a bit jaded about it. Every hiker coming through the door at REI gets one shoved in their hands. Every group backpack I go on, I end up fixing a Jetboil or boiling water for someone who brought one. The Snow Peak, Optimus, Primus, MSR users - not a prob. Alcohol stoves? No prob. Jetboils especially dislike getting up in the morning, so of course, I started carrying a canister stove so that at least the frustrated Jetboiler can just borrow my stove and not waste my fuel.

There are gear items that I have too much experience with that I have never and will never buy.... this be one.