A stepless espresso grinder built around genuinely useful workflow features (micro-adjustment, near-zero retention, grind-by-weight on the Wi model), but hobbled by a plastic gearbox that fails predictably enough that owners budget for the repair. Motors die after several years, burr carriers develop wobble, and the noise level makes early-morning grinding a household incident. Baratza ships replacement parts fast and cheap, so if you're comfortable treating occasional wrenching as the cost of admission for precision at half the price of all-metal rivals, the Sette works. If you want a grinder you never think about, spend more on a Eureka Mignon.
The Niche Zero is the single-dose grinder for people who know they love traditional espresso: medium-dark roasts, chocolatey shots, milk drinks that taste like dessert. It delivers near-zero retention, whisper-quiet operation, and years of reliable service, but the conical burrs that make darker beans sing will flatten fruity Ethiopians into something polite and forgettable. Enough owners have bought a second grinder specifically for light roasts that the pattern is clear. If you're committed to classic espresso profiles and want a grinder that just works, this is still a smart buy; if you're still exploring what you like or already deep into the light roast game, the burr geometry will fight you.