Was tidying up my camping gear and found one of these and a hexi refill inside my mess tins recently. I used these when I was younger, introduced to them by my airforce dad. I've used these on the Coast to Coast, Lyke Wake, Pennine Way, and West Highland Way. Prefer these to gas, as they are more compact and more stable, you know exactly how much fuel you have, and can supplement your brewing power with twigs. Yes they can be a bit hard to light, but the hand gel suggestion is pure genius, I used to use alcohol jelly fuel refills, but hand gel is a far better idea, being dual purpose. I also pack a jet flame lighter, as it burns hotter, is more directional, and is less wind prone. Hell, get both. And yes, they do soot up your mess tins, but a quick rub on some wet grass will get the worst off.