Fallkniven P1 folder is very well made piece and just right in size for daily carry, looks classy enough to do not make you a shame even being carried with formal attire. Pretty handy also. The liner lock works flawlessly. The blade is conventionally sharpened, the edge is not convex.
It doesnt have pocket clip and comes with black Cordura belt pouch what provides both vertical and horizontal carry options. In my opinion well made black leather pouch would be more suitable for this design...
I do not have any William Henry knife, however I have handled several their pieces at different knife shows and stores. Comparing them some similarity can be noticed, sure. Peter Hjortberger at Fallkniven says P1 is inspired by Bob Loveless work, probably WH knives also. However P1 offers very similar quality for more attractive price.