I bought one to see how it did (I make my own axes). Not impressed. Doesn't cut well, heavy, the polypropylene doesn't have good stiffness/flex characteristics, goofy sheath. The spike's ok, but if it goes in deep enough it will act like a barb and stick.
The whole rabbet tang on a tomahawk thing like SOG does as well is jsut a bad idea. When the SOGs first came out, I said, "That's gonna break on the first or second hit." Sure enough, they had to have recalls. They get away with it because of the synthetic handles now, but it's still poor design. You can see the Trench 'Hawk's handle flexing around where the bolts are.