I have not used one of them, here is a shot for those interested :
http://www.knifecenter.com/knifecenter/junglee/images/k02029.gif
For that type of use I would go with this :
http://dns1.silverstar.com/turnermfg/index.html
The Junglee axe is slightly larger and heavier, and would probably out chop the Uluchet, depending on the edge geometry. However the overall quality of the Uluchet is much higher and the price is not that much greater (~$100) .
You are looking at a higher grade of steel (D2), a much more controlled heat treat process (including a cryo treatment), and a much more durable grip.
The transition between open and closed also provides a far more comfortable working grip than choking up on 1/4" of bare steel.
The ability for the tool to unfold has many benefits, besides allowing carry in otherwise impossible situations, it can also be used in the folded position without printing as much as a weapon as a full sized hatchet, let alone a large knife. I never had a negative responce to it.
As well P.J. does serious evaluationson his own products and as well provides a very high level of customer service and has a strong warrenty (one of the best in the business) so you can use the Uluchet with confidence.
-Cliff