It works and the heart of the unit is quite solid. It deserves an 8 overall.
Positive Product Points
This grinder has the same burrs as the Solis/Starbucks grinder. Where it falls short is in the implementation - but not so bad for what I paid.
Negative Product Points
Static - why not an anti-static payout hopper? Grind setting creeps - best to hold it down by hand.
This grinder can produce a very good grind within its range, the resulting grind compares favourably to commercial products. But it can be a pain in some ways. Its loud and static prone. Yes, it makes a mess, but so do commercial machines. My main complaint is that the grind setting creeps unless you hold your hand on the top while grinding. If you want to grind french press, it won't stay on unless you hold the dial in place. I guess this is because the distance between "remove hopper" and "French Press" is too short. Oh, and the knob can fall off since the stem is too short in my opinion. But as a grinder, it does a pretty good job.
I got it for a great price - $51. For that, who could complain at all?