Great fine grind, very ritualistic, feels good, elegant.
Positive Product Points
Good fine grinds. Tactile. Quiet. No residual (stale) grounds to speak of. Exercise, if you like exercise.
Negative Product Points
Coarser grinds are less even. Exercise, if you don't like exercise.
Very pleasant to use, and _very_ quiet if you hold it or rest it on something soft (louder if you rest it on a kitchen counter, piano, etc.). I think that grinding my own makes me appreciate my coffee more. The corollary is that this is not a good grinder if you frequently want to serve coffee to piles o'guests.
The grind adjustment knob wants two hacks: (1) draw a line somewhere on it for easier repeatability, and (2) wedge a rubber band into the gap under the knob to keep it from wandering. With a fine grind I find that I need 137 turns for a shot--this is the Fine Structure Constant, so I believe that the Zassenhaus is trying to tell me something fundamental about the nature of the universe every time I grind.
If you leave the hopper open, beans will hop out if it's almost empty. Hence, I recommend any of the closed-hopper grinders rather than any of the open-hopper ones. Also, the closed hopper is better protected against kitchen grime.