Unfortunately, the trimmer problems with prolonged, more stable grass. It wrapped the trimmer head and even works up in the gearbox before. One gets the grass out only if one removes the perceived dozen screws and open the trimmer head. Directly after cutting the metal cover on the trimmer head by friction with the grass is so hot that you burn your fingers. Bosch has really built a design flaw here. The device is completely unsuitable for "Heavy Duty". The 1000W power also do not arrive at the grass. The device has in comparison to other trimmers significantly put lower speed, what the problem of Grasaufwickelns worse. Dear trimmer Buy is made especially for this task.