I used mine for the first time yesterday and can report that I found it fairly quick. Not up there with my mini gas stove, but quicker than the crusader. The burner comes with a screw lid as standard and you can just pop it over to put it out, but I just blew it out with one puff. The windshield gets bloody hot though. I used the lid to bake bread with a stick for the handle. Great idea! Then boiled pasta in the billy and added a tomato soup into the watewr at the end to make a sauce. Great, except I found it very tricky to eat out of the billy, as the billy stayed bloody hot for ages, and the sides were too high for my ickle spoon. So am I missing something here like a billy can rigid handle to pour or hold? Bit heavy for my liking as well, but an ok bit of kit. Never did get around to hanging it over the fire, but made the bracket and it would have worked well. First time I've burned Sweet Chestnut, and it gives a very clean flame with very little smoke at all. I'll have to find that again! My assistant discovered that by putting the Green Slime in the Crusader cooker, then screwing up the wrapper and putting that in too, makes the burner more efficient. It seems to burn hotter and longer, and disposes of the wrapper too. We think they are bio degradable, but not sure.