The Aeropress's versatility is impressive. It can be a "full slurry" brewing device (like a vac pot or French press), or it can operate like an espresso machine minus the pressure (puck extraction). What you do with it depends on what you want. It's perhaps the best "one stop shop" for such versatility.
With paper, I rarely concern myself with pucky extraction, going for a full agitation like most Aero users. With poly inverted, it's also a full mix scenario -- unpucky.
With this metal filter, I find puck extraction to be ideal; indeed, I get fines otherwise. But to illustrate how well puck extraction works in the Aero with the disk, let me say that I just used a whirly to grind my beans quite fine, and did a pucky extraction in the Aero. Alas, I was unable to do a zero velocity pour, so I did get some fines. But not much -- a tolerable amount that did not embitter the last half inch of the cup.
Once I settle on a zero-velocity pour method for the Aero, I suspect I'll be using this metal a LOT (at work I generally do one pourover in the Hario {a liter or so} for a colleague and me, and that's it for the day). I'll be contriving a means that prevents bloom from getting the upper hand on oils (in ideal puck extraction, bloom is circumvented).
