Depends.
It's designed (afaik) for end fed not so long wires...
The remote box has motorized adjustments, the inside box has a big nifty cross needle power/reflected display...
And old friend (SK) Dick, KB2xxx (crud, can't remember his call!) had one that we modified somewhat to try to load an "L" antenna. Worked sort of ok.
Here's the pdf:
http://www.virhistory.com/tmc/tmc_pages/tmc_manuals/manuals_db/ats/tm_ats-2_5_15_65.pdfOddly some 10yrs after his passing I was up at the Saratoga hamfest and some guy pulls a trailer in late, with Dick's actual unit. It was easy to spot because we installed two long bat toggles on the face. Definitely non-stock.
Hard to say what it is worth - the actual cost to replicate is insane.
But the usefulness is limited - and you need a multiconductor cable to operate the beast.
That's all I've got...
_-_-