Product review (5 stars): an advantage when used against harder materials or when the blade begins to dull. A full tang also increases the amount of ...
Wo where do we begin?

Full tang construction. 440 Steel. G-10 scales. Kydex sheath.

What does any of it mean?

A full tang knife or sword generally allows for increased force leveraged through the handle against the resistance of material being cut by the blade, an advantage when used against harder materials or when the blade begins to dull. A full tang also increases the amount of stock metal in the handle of the tool which can be beneficial in altering the balance point of the tool since the blade of a knife or sword is often quite heavy compared to the handle.

Type 440a higher grade of cutlery steel, with more carbon, allowing for much better edge retention when properly heat-treated. It can be hardened to approximately Rockwell 58 hardness, making it one of the hardest stainless steels. Due to its toughness and relatively low cost, most display-only and replica swords or knives are made of 440 stainless. Available in four grades:

G10 (G-10) is a high-pressure thermoset plastic laminate consisting of multiple layers of woven fiberglass mesh cloth impregnated with an epoxy resin binder. It can be produced with many layers of the same color, or different colors to achieve a specific cosmetic look.

Kydex is a line of thermoplastic acrylic-polyvinyl chloride materials manufactured by Kydex LLC. It has a wide variety of applications, including for firearm holsters and sheaths for knives. Similar acrylic polyvinyl chloride material (IPK Acrylic-polyvinyl chloride) is manufactured by Emco Plastics and Interstate Plastics, which carries nearly identical properties with an added layer for screen printing. For some applications it is used as replacement for leather, where it has the following advantages:
waterproof
scratch resistant (Rockwell "R" hardness of 90)
holds its shape better, and will not stretch or shrink under normal conditions
lower friction.

So, at the end of the day, you have a knife built to be durable.  It felt good in my hand.  I liked the heft and balance.  The gimping along the spine, right about where the scales begin, provides an advantage.  The sheath and belt clip can be configured to work for different methods of carry, and left and right handed users.  I like to have my knife on the left hip, blade facing forward, in a right hand cross draw, because my pistol is on my right hip.  Many of us have knives that are decades old, sharp as can be; but suffer from corrosion.  Pitted, rusted blades.  Dried, aged leather

This knife is sharp.