Pros: Weight, Blade Material, Blade Sharpness
Cons: Sheath, Pocket Clip
More knife than it looks like
The replacable blade knife is an interesting concept. At first I frowned on it thinking it was for people who did not know how to sharpen a knife. The insignificant cost of the replacement blade makes sharpening a waste of time, however a couple of passes over a ceramic stone rapidly restores the exceptional edge. On the negative side: changing blades is a little tricky, I lost my first Piranta because of the pocket clip (I took the clip off of the second one), and I did unintentionally break a blade. The piranta is much more than a pen knife but less than an axe.