Is a waste of line and makes terrible noise due to constant automatic feed.
"The automatic line feed constantly feeds. The cutter is not sharp enough to cut the line so the line gets longer and makes a terrific noise. Even if the cutter was sharp and cut the line it is a waste of line.
I have a Ryobi ONE trimmer which I have had for several years and was very satisfied with but it finally gave out. It was an automatic feed but not constant.