I've had mostly good and a bit of bad experiences with most all of the brands. Stihl, Echo, Dolmar (Robin), Shindawa, Partner, Husky and probably several more. My suggestion is buy a commercial grade unit and you're chances of getting good service from it are a lot higher. They all have issues eventually, but that's part of the package with OPE. My brush cutter is an old Stihl FS200 that has WAY more power that you can use most of the time for brush cutting... gotta tinker with it from time to time, but the fact that it doesn't get used often enough is the biggest problem with it.