精密GS7

In terms of price-functionality, this is a good product, if you don't mind tapping the grinder to release a bit of coffee retained in the machine.

Takes a little bit to get it right and figure out properly, but really easy once that's done and a good budget option!

Consistent grind, relatively quiet. Easy to operate. I do notice some clumping in the basket but it's nothing a distribution tool or even a decent tap on the bench won't fix.

I've been using this as a single dose espresso grinder, measuring dosage with a cup before misting the beans with water and proceeding to grind. Relatively low retention, but it still retains around 0.1-0.2 grams of coffee each shot which will eventually come out overnight. Fast grind speed thanks to large burrs, reasonable range of grind settings, and useful grind time programming for dialing in a good shot.