3-point mounted "string trimmer" - any good?

[CountryBumkin]

In another thread, cerlawson provided a link a 3-point mounted "string trimmer". I hadn't thought of anything like this device before seeing the post, but a device like this would sure save me a lot of work. If it works.

I have a lot of citrus trees and long 4-rail fence that I "hand" weed whack. My current gas powered string trimmer will chew up the bark on the trees (and fence posts) if not operated carefully, and its hard on the back after a while.

Has anyone used the 3-point trimmer shown in this link.
Does it work well (are there any drawbacks, other than price)?
Are the DR products well built?

http://www.drpower.com/power-equipm...t-fence-line-trimmer-pro-xl-speedhead-new.axd

Thanks

 

[Deuce]

Hope you invest in some kevlar with that

 

[CountryBumkin]

Hope you invest in some kevlar with that

Seriously - it looks like a pretty good idea. What do you see wrong with it?

EDIT: Well after reading all the reviews on the DR site, I guess this is not the device for me. For one, it won't trim all the way around the trees by just making a straight pass up and down the rows.