I have one. I love it. The blade is thinner than other model Khuks of the same length. As a result, it is ALOT ligher. Makes it great for long camping trips. Mine is 16" long and weights 16oz. Balance is great. Handle is a little small on me, so i will probably end out cord wrapping it (a pity, the Dhar wood is nice!).
As already mentioned, it is amazing and brush clearing due to the thing blade and length. I have taken apart much bigger things, but it's slow work since there's not as much weight behind the swing.
If you're looking for a "survival" knife, I would highly recommend it. It still has the length and strength to take down a tree if need be (though slow), but is light enough you won't need to think twice about whether or not you really want to carry it on that hike...
For a survival knife, you might also think of looking into the highly prized Kerambits HI makes (though my Kerambit weights the same as my Tamang...)