My reason for buying was: A mill the coffee and espresso can grind finer powder. Anticipation, the seller TOP !! To mill: The first mill had a slightly curved axis on the Mahlkern caused significant stress marks or almost smooth polished grooves to one months usage. In any case, the powder was not to be used more and more crude and actually. I use the proposed adjustment of the manufacturer for grinding. The second mill had not cut all of the grooves on the grinder, so that can not work properly in the mill of Mahlkern. This mill was not even turned her by the manufacturer according to the grinding adjustment. For processing: The transition from metal to wood body is not clean. A stage makes keeping the mill uncomfortable. The glass container to collect the powder is relatively difficult to take out. Also, the magnet in round wooden knob is in my opinion much too weak, it goes down very easily. Conclusion: not nearly what I hoped for from Zassenhaus. The mill is not worth the money!