It is very very important to get the good quality hedge trimmer instead of the Craftsman, Troybilt type. The blade is the major difference, the cheap brand don't use real knife edge blades and most of them are not dual motion( both blades move opposite direction), they have just one moving blades and the other one is stationary. You should get the HS45 or Echo HC150 or Kawasaki, those are the cheapest but commercial quality that will last for years to come. Don't be too cheap and regret, remember if it is not good enough, it is too expensive. I don't own Stihl but read a lot of good things about HS45. I own the Echo HC151 and it is a tough cookie, it is the most reliable piece of all my toys.