this is good for injured vets and people without hands or who have nerve damage or genetic mutations that make holding certain mods difficult. although it seems rare, there are a lot of smokers out there that with these problems, a draw-activated mod would be perfect. one of my classmates doesnt have fingers. he wouldnt be able to use certain mods i guess. cigs are easier for people with this problem because you only need the cigarette in your mouth and an old school flip-light zippo lighter to light once and your set.