Do you like Tinkers' Construct? I like Tinkers' Construct! What I don't like, however, is uninspired materials and traits that don't leave a lot of room for variation and adaptation to one's own playstyle. Why bother implementing a weapons customization system if there is always a trivially optimal choice of weapon construction at any given point in the game?
This is where Tinkers' Evolution comes in: a brand-new and shiny Tinkers' Construct addon that gives you some real variety in your tool construction! Long past are the days of building a refined glowstone sword and being done with tinker tools for the rest of the game!