Pros: Overall Quality, None
Cons: Durability, Ease of Use
Great little stone, probably the only one that I'll ever need besides leather strop. That's why I've ordered three of them! It is chiseled on the bottom, so its lightweight, and if you find an adequate container, you can carry it with you in a backpack. I will try to glue mine on a 2x4 for the ease of access. So far, I've sharpened 9Cr, BD1 and 440 with no problem whatsoever, and yet have to see if it will work on harder steels - S30V and ZDP198.