This 50mm flat burr grinder delivers excellent espresso and runs quieter than most at its price point, but it's built for hopper-fed workflows, and the enthusiast crowd keeps trying to make it single-dose. Fill the hopper with a week's worth of beans and pull shots from the same roast, and it's a workhorse: consistent grind, solid build, easy to dial in. Try to single-dose and swap beans daily, and you'll fight 2g retention, an unmarked stepless dial that takes three full rotations to move one setting, and a mod wishlist that includes bellows, angled stands, and aftermarket hoppers. Buy it if you stick with one roast at a time and don't mind filling the hopper; skip it if your workflow involves weighing every dose and switching beans constantly.
Big burrs at a small-grinder price, the DF83 slots 83mm flat burrs into the sub-$600 bracket where most competitors still use 64mm. Speed is the obvious win: it rips through an 18-gram dose faster than smaller grinders, and the grind quality delivers for both espresso and filter. The plasma generator handles static, retention stays low, and the Gen 2 version fixed some first-gen quirks. Noise is the letdown, one owner specifically avoided loud grinders and regretted this choice, and you'll need to pump bellows after every session to clear retention. If you want 83mm performance cheap and can live with the decibels and the bellows routine, it's worth a look; if you need quiet operation or a truly hands-off workflow, spend more or stick with 64mm.