This is the grinder for people who got tired of chasing retention ghosts and sweeping static-charged grounds off the counter every morning. The ACE anti-clumping system and bellows design deliver what most single-dosers only promise: beans in, same weight out, no mess, no ritual. The stock adjustment dial is genuinely annoying, tiny, hard to read, and most owners replace it within a month, and you'll recalibrate the zero point after every deep clean. If you want one tool that grinds espresso fast, quiet, and clean without the drama, this is the buy. If you also brew pour-over or need zero fuss on setup, keep looking.
Option-O built its reputation on a specific bet: that stripping away fines would unlock clarity light-roast obsessives had been chasing for years. The P64 proved that bet, then got replaced by the P80 with bigger burrs and tighter tolerances, so you're shopping a discontinued model unless you find used. What you get is exceptional flavor separation and near-zero retention, but these grinders pull thin, bright shots that read beautifully yet lack the syrupy body traditional espresso drinkers expect. If you brew fruit-forward naturals and want to taste every fermentation note, the Lagom family delivers; if you make milk drinks or prefer chocolatey medium roasts, a conical grinder will serve you better.