Good enough to forget about and focus on pulling shots.
Positive Product Points
Excellent grind quality. Acceptable noise level.
Negative Product Points
A doserless version might be nice. A stainless or chrome body would make a nice upsell.
I use this to grind beans for my Isomac Millenium. I've used it for six months with no issues and no complaints.
I wouldn't mind having a doserless model since I grind on demand, however, I now have my own system for using the dosing chambers to figure out how much coffee to grind (I know - I should use a timer)
Only other minor negative is that my wife doesn't like the look, so the grinder is wedged between the Millenium and the cabinet to reduce the visibility. She likes the chrome doser, but not the painted main body.
I've noticed more than a few cafes using the Mini as either their main or more frequently their decaf grinder.
Excellent service from Chris Coffee - no problems - shipment arrived promptly with no damage.