Fellow's $200 all-purpose grinder is a pour-over specialist in espresso clothing. The original clogged relentlessly, coffee caking on chamber walls until owners either deep-cleaned weekly or upgraded within two years. The current Opus 2 solved retention, but espresso remains its weak spot: recommended settings choke most machines, so you grind coarser than the dial suggests and still get less consistency than a DF54 or Eureka Mignon Zero at the same price. Buy it if pour-over is your main game and you want something compact and handsome on the counter. If espresso matters, you'll outgrow it fast.
A grind-by-weight workhorse built for cafes that need speed and precision without babysitting a scale, it doses to the tenth of a gram, grinds fast, and won't overheat when you're slammed. Dial-in takes patience and you may need to adjust your espresso machine's temperature to coax the best from the flat burrs, so this isn't a plug-and-play miracle for beginners still figuring out their workflow. If you're pulling one shot a day at home, you're paying commercial money for commercial capability you'll never use, but if you're running a cart or a busy setup, it'll keep up without fuss.