Can't speak for the Spyderco version, since it has some features I don't like on a puukko, but I can tell you something about the real thing.
The puukko is the traditional Finnish belt knife, used for woodworking and hunting, paired with an axe, primary cutting tool for processing firewood in the taiga.
It probably dates back to the Early Middle Age and, as far as ancient specimens permit to understand, it was almost in its known shape already at that time.
It proabably passed through minor changes at the end of the Viking period (around 1000 A.D.) when viking styled scabbard (with metal fittings all along the side acting as stitchings) were sobstituted by the current back sewed one.
Along the road it also got the characteristic rhombic blade, due to the practice of reforging sqare files into blades.
Speaking of use it hits everything from feathersticks to gutting, from artistic wood carving to skinning, and there was a time in which it has been also a weapon.
Its age should say enough if it's a "decent bushcraft knife" in its environment.
The measures and steel of the Spy put it among the smallish EDC puukkos, mainly used for detailed carving and small game hunting.
One thing has to be said: for less than its price you can buy a custom made one handforged by a Finnish smith.
