My wife gave me a jawsaw for Christmas two years ago and I have beaten the living daylights out of it, and it still works fine. I have dismantled the brush and branches from six huge pin oaks, enough to provide nearly 2 chords of wood. I have taken down more than four dozen smaller trees and cut them up in a fraction of the time it would have taken with a regular chain saw. I didn't get nearly as dirty or have to bend over to cut most of the wood, since the jaws design picks it up and cradles it during cutting. I also purchased the pole extension, which works great for trimming branches that hang over the house and shed roofs. After all the cutting I've done, I still have never sharpened the chain, likely due to the fact that the design protects the blade from grinding into the ground during each cut. If this one ever gives out - which it gives no sign of doing - I would not hesitate to go out, immediately, and buy another.