Mine dulled very quickly and is now mostly unusable. The baby pictured literally fell apart like the tree I was working on. Lasted about 2 minutes. Not pushing too hard, I was confused as to what had gone wrong. When I looked more closely I noticed that it was hollow at the point of fracture. I would say that this is a pretty big disadvantage. I gave it two stars because at least others have allowed me to finish some important projects without falling apart.