I do destination backpacking, not distance. So, weight\size is not a factor. I only need hot water for cooking, and the M Kelly is perfect. With well thought out preperation, having fuel ready to burn, and, the kettle full of water, it does boil acceptably fast.
It requires some attention to give it just the right amount of burnable materials to keep it going, and to be sure the water never boils
This review was written in the old system and had content requirements that are different than reviews written today.