What's it used for? Is it like a replacement for a candle?
Obviously you wouldn't use it for cigarettes, because you have to use a lighter or match just to get it going in the first place, right?
Actually, you can use it for cigarettes, as well as pipes, hooka, etc.
It is not about the act of igniting your smoked material; rather, the purpose of this product is to ignite your smoked material while minimizing the chemicals inhaled from the burning fuel, and improving taste.
Butane also causes drowsiness, headaches, and if you smoke enough, a dulled sense of smell and taste. It's kind of like putting your mouth to car exhaust.
It sounds silly, but that is what many of my friends thought until they tried it.
It takes a bit more time and effort to light your pipe or cigarette, or cigar, or whatnot, but the improvement in taste and cleanliness of the smoke is worth it.