Go ahead and pick one up. You will not be disappointed. I have been through a bunch of large fixed blades over the years, but the RTAK is about the most versitle. So far I have only cleared huge amounts of brush with it and cut a tire from a rim, but it has performed as billed for both those functions.
The blade stock is thinner than some blades of comparable length. This makes a big blade without having to lug around excess weight, and the thin profile really makes it sing when clearing light to medium vegetation. BUT, it chops really well also. Any knife that can hack through rail road ties is good for me.
Everything about the knife is purpose built, from the extended tang with laynard hole to the full length profile blade. The sheath is awesome too, easily a fifty/sixty dollar addition IMHO. Newt stands behind his knives 100 percent, and you'd have to get a hydraulic jack to break it. At the price, there is NO other fixed blade I know of that compares in performance, not even in the same class.
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"Women bring life into the world
and much death, for they sway the
destinies of men." -Anneas