My Kelly kettle came yesterday and I experimented with it last night. Very easy to use. It boils water very quickly, about 5-6 minutes using just a little bit of dried grass and about 10-12 small twigs. I bought the whole kit, I even cooked an egg on it! I am planning on taking it to Haiti with me in a couple weeks as we will be going up in the mountains, and well, you never know. I bought the small stainless version, but I kind of wish I bought the next size up, the small one will only boil about two coffee cups of water. You also get a little bit of ashes in the water, but not a big deal. If you were getting this for camping, or hiking for one person, the small is fine, but if you are getting it for "just in case", I'd get the biggest that you had room to store it.