I love this stove. I've had mine four years now, and it still works like new. I recently loaned it to a friend who says he is now going to buy one, so I thought I'd see if still carries it and I read some reviews. I was shocked by some of the critical comments I read.This stove heats water very quickly, even at high altitudes (though water will not heat as quickly at 10,000 feet as it will at sea level with any stove!) Compared to a white gas stove or a Jetboil, this stove does heat slightly more slowly, but the difference is negligible and not worth the $100+ difference in price and putting up with the delicate craftsmanship of the others. This Coleman is solid and durable.The head has many small holes, or jets for the flame to ensure a regular, evenly-distributed level, adjustable with clicks on the dial from high to very low simmering to off, with a couple more stops in between. The design of the burner shields the flame from any wind, so in all but the most windy conditions it works fine without any additional shielding. Mine simmers perfectly, with a very small flame. Some reviewers here complained that the simmer is too strong, so they may have a defective unit. If I were to design a stove, I would design the flame control as utilitarian as this one is.The burner easily separates from the tank and base to split up the load for hiking. The tanks can be found for just a few dollars, and Coleman claims a tank will last for more than two hours on high or nine hours on low, which is plenty to cook many meals and heat water for cleanup. I've used it to prepare all meals for a three-day backpacking trip for six people at 9,000 feet, and I didn't use up a single tank. I suggest starting with a full tank (or two, depending on length of trip) backpacking, and keeping partial tanks to use on camping trips, where having extra tanks is not an issue.For the price, this is a steal. It's a very good stove for backpacking and for camping, though a little heavy for the hiker. Not a problem for a group, however, to distribute the load. Remember, when you're a couple days in at 10,000 feet, you want a good, reliable and durable stove like this - and not a finicky white gas or special-canister, overpriced butane stove.