Knife wz.98 ech... where do I begin...
I also have the old wz.92, its previous version, chrome-plated. I think I bought it in '95. Then, sometime after 2000, I bought wz.98, black. It got lost somewhere, I don't know if I lost it, or a friend "took care" of it... Recently, I bought a wz.98 black again, I don't really know why. Probably out of sentiment.
This is probably the worst knife I've ever had, each of the three, with the first being definitely the worst. The first two didn't hold an edge. You could sharpen them endlessly without success. I haven't tried the third, but it arrived dull, so I don't see the point. There's no point in trying to cut anything with them, neither wood nor bread. You can try chopping and batoning (but only with the wz.98, not the wz.92).
They are heavy. I think they weigh twice as much as a Glock knife.
An improvement compared to the wz.92 is the removal of the compartment in the handle, which was hard to use anyway because the round cap had no knurling, but the knife is more solid (with the first one, we tried to practice throwing with friends and it quickly bent at the joint, so I wouldn't chop with it either). Besides, the compartment created a pin on which the rubber handle was mounted, this pin was round in cross-section, and the rubber part started to rotate freely around it very quickly. The wz.98 has a flat pin, so finally the handle doesn't rotate.
The guard is reversed. In 30 years I haven't met anyone who knows why, but all normal knives have the guard bent towards the tip (or straight), not towards the hand like this one, which makes it much harder to use for anything.
The sheath is another misfortune. It's one-sided, the manufacturer didn't anticipate that someone might be left-handed and want to insert the knife the other way around. The clasp is a piece of springy metal going through a hole in the guard. In my unit, it's bent incorrectly and doesn't release the knife right away, you have to fiddle with it. I've seen opinions that the metal strip is a great idea, because if it breaks you can replace it in the field by unscrewing two screws. Only I've never seen this metal strip for sale anywhere as a replacement.
So one might ask, what is this knife good for? You can baton, for throwing it's decent, here the weight is an advantage. Besides that it's pretty, if someone appreciates knives for their silhouette and proportions, then yes, it's suitable for admiring (although wz.92 with the fuller is definitely prettier). But for any kind of camp or survival tasks, I would recommend the Glock knife.