I love these lighters because I hate using matches. A family member gave me a twin pack one time because she knew how I felt about matches, and this is such a simple way to light things.
They are great for lighting barbecues, but they also can be used for other purposes. I light candles with them, because I almost always manage to burn myself trying to use matches. These lighters can also be used for camping, fireplaces, water heaters, almost any situation where you would need a match (I wouldn't advise lighting a cigarette with one of these lighters, though). Your fingers don't come in contact with the flame, and they last quite some time (or at least mine have).
The AimnFlame has an adjustable flame, a visible fuel supply, and a child resistant feature. It goes without saying, though, that something like this should be nowhere near children.
With an AimnFlame lighter, I feel that I will never need to use matches again (especially since I don't smoke). They come in handy for lighting those things that are hard to reach, such as the wick of a candle. They also make great gifts.