Are 6 Wire Trimmer Heads a waste of money?

Testing a variation on the classic. The 6 wire trimmer head claims it's durable, but can it stand up to a session in the lantana? Chapters 0:01 Introduction 0:15 What is it? 1:00 Opening the package 1:30 Will it fit my Stihl? 2:30 Thoughts on it so far 4:35 Heading out to cut some grass 5:00 Cutting along retaining wall, fence and concrete 6:25 Cutting amongst rubble 6:45 Mowing woody weeds 7:42 Cutting Lantana 9:57 Checking the head after Lantana 10:15 Clearing a Hillside 12:08 Conclusions - did it Survive