The one I've got is right around 7 lbs. and 40" in length; the entire rig tops out at over ten lbs. I have some pics around here somewhere comparing the chakmak and karda to a 17" khukuri -- they are about the same size.
Swinging it is an experience, as you might imagine. I'd think that this one would be much the same, except that its handle might be a bit longer and may better accomodate a second hand. (You do not swing these with only one hand. Hold, maybe, but not swing.)
Polishing it must have been a task.
These actually can be used for some work; it did a great job of clearing blackberry bushes for example, as any creepers that didn't cut cleanly snagged on the blade and its momentum would uproot the entire plant. I consider them to be the most dangerous to use, though; one can check a swing if they realize immediately that it's going bad, but one does not check a swing with one of these. It keeps going until it's ready to stop, not the user.