This thing has been used non stop for 17 days straight, never hesitated, never failed to start, it just runs. I've cut everything from hedges to those nasty pricker bushes, 3/8" saplings. You name it, it cuts. Even snipped a few parts of my chain link fence and a strand of barbed wire (not recommended). Other than the poor placement of the exhaust, I don't have a bad thing to say about this trimmer. I am notoriously hard on tools, and this one has taken all I had to give it and is ready for more.