looking at weed eaters (straigh shaft-no attachment) and can't decide. considering stihl, echo, husqvarna, EGO, or really anything. my concern is many recent reviews of these seems to indicate a recent decline in quality-(have a 40 yr old stihl saw) --so, i'd like to hear from people who have purchase a weed eater within the last year or 2 and their feedback. or do i just go the "disposable" route and get a $150 or less trimmer. any help would be appreciated