This pocket-sized grinder punches well above its $55 price for pour-over and AeroPress, delivering grind clarity that rivals metal grinders twice the cost, but the plastic body and compact gearing turn espresso grinding into a sweaty arm workout that takes over a minute per shot. The upper chamber threading can seize after the first cleaning, sometimes requiring a freezer trick to loosen, and the internal click adjuster occasionally skips without resistance, leaving you guessing at your setting. Buy it if you travel light and brew filter coffee above medium-fine; skip it if you need espresso capability or want a grinder that feels substantial in hand.
The C3 is a handsome, well-built hand grinder that makes good pour over coffee but has been quietly retired by the market. The grind dial can slip or free-spin at certain click positions, forcing you to recount from zero mid-session, and espresso grinding demands a full minute of hard cranking for a single shot. If you already own one and brew pour over, it'll keep working just fine. If you're shopping today, skip straight to Timemore's own S3 or the Kingrinder K6, both faster and more reliable at the same price or less.