The name Ray Mears has given to those neat little blades is annoying me a little. They're not mere "training knives"... Those are serious blades, strong enough to whitstand life long use and abuse. Their real names are #780 clippers, from Frost's, in Mora, Sweden. When I contacted Frost's to check if I could buy from them for my survival school, those knives were the ones they put forward as "tough enough". And they are.
As for sharpness, they are great cutters, especially good at woodworking, and meat cutting. Slicing hard things (like carrots for example) is not what they excel at. The blades are a little too thick and the scandi grind is not the best in slicing. But hey, if you want a slicer get yourself a paring knife
They are great skinners, even though they lack a little belly for that matter. The grip is secure, even when soaked wet, or covered with blood and fat. The sheaths, even though they look cheap, are surprisingly tough (except for the belt loop part, which I don't use since I carry them handle down around my neck).
Edge retention is very good, and they DO get scary sharp when sharpened properly. I have shaved in the field with mine more than once.
Anything more than those knives for a general use field blade is purely esthetical (and commercial). For function alone, they stand their ground against ANY high end scandi blade I have tested.
Cheers,
David