Hensley arrow on eBay - Worth while upgrade?

I found the Hensley Arrow was a worthwhile addition. Barely notice wind or semi-trucks. Narrow, winding, roads are no problem as the trailer stays exactly behind me. The weight really does get transferred to the front axle...which I could never accomplish with my "other" hitch. No greasy ball to mess with. And quite. There is a learning curve to hooking up and depending on your truck/trailer height, you may need a different hitch bar to make the trailer ride level.

I can't advise for or against buying it on eBay though.

Steve