Is the Stihl KM-RG reciprocator head any good? Trial on really tough grass (Kikuyu - worth a look!)

So we gave a short trial of the Stihl KM-RG reciprocator attachment on the infamous Kikuyu grass. This is not an exhaustive test - just first impressions - (and I've found out the real name for it, too).
I'm not paid by Stihl, or any affiliate - this is a genuine trial and reaction - StihlShop (Silverdale NZ) just loaned me the unit to try out, (thanks guys)!

[garden-needs]

i think it would of worked better if ran it along the edges of manholes and path edges. using it tilted?

[mavifeeyakier]

🤦🏻‍♂️, this tool is not for cutting grass, poor. presentation