This is a very useful device if you use it properly. Being battery-powered, its brute force is limited, but its design and flexibility is what really counts. The plastic is tough enough to allow you to really focus in on a charcoal fire, moving within inches of the coals and blasting individual points with a narrow stream of air, all without worrying about the plastic melting. I found that if I concentrate on a specific point at the base of the fire, and hold the device in one spot for 10-15 seconds, the continuous forced air creates a kind of vortex, which rapidly expands the combustion. The glow increases ferociously, and you can actually hear the “roar” of the fire swell. This spreads the fire very effectively. If, on the other hand, you try to stand back and casually waft the device over a large area, you will be wasting your time. Using the FiAir properly cuts down–by a lot!– the waiting time for a charcoal grill to be ready for cooking. It is well worth the price. Just be sure to keep batteries at home, and remember to get very close to the fire and search out the “sweet spots” to attack with the focused air stream this device creates!