Works on first click of the switch and the flame is great for starting a fire in a fireplace. They say they have the largest fuel supply, however, no other lighters I could find say how much fuel they have. Thus, I guess, you have to take their word for it.
Functionality is great with this extended reach lighter; Trigger force feels good, lights-off on the 1st click, flame adjustment works well and has a decent range, and the butane fuel "tank" is larger than most any other brand, but that's because IT IS NOT RE-FILLABLE. The lack of re-fill capability is a real disappointment and actually irritating... Nobody else does that, so I didn't catch that little fact before buying.