I need yet another one. The last one was a Ryobi 4 stroke, without doubt the worst piece of shit I've ever had the displeasure of owning. What's the best value? I assume that Stihl is the way to go, is there something else I should be looking at? I want a quality tool, not another piece of crap designed to run for a hundred hours. Does DeWalt make a trimmer? Thanks in advance.