I don't know from experience, but then with the Zassenhaus you'd get answers all over the map - experience varies a lot, or maybe it's varying expectations.
One good thing, just from the couple of pictures I can see, is that the crank spindle looks to be held in place fairly firmly, and perhaps accurately. Some grinder designs put the crank on top of a thin plate, with the depth adjustment nut bearing on that plate. The plate flexes, can't hold the adjustment and tends to work loose. The way they're doing it is like the better Zassenhaus models.