Instruct: Classify the given Amazon review into its appropriate rating category
Query: Design is ok, but could have been made more foolproof to prevent damage

So far this unit works great for chia seeds. The only complaints I have for the unit is the coarse/fine adjust knob is tricky to use so as not to damage the milling cones, which the instructions say will happen if the unit is operated without seeds. But can happen even with seeds, at the start of milling, if the knob is set too fine, before the seeds actually enter the milling cone. The method I use to prevent this, is to set the knob to a coarser setting, then start milling to get the seeds into the mill cone, discard this material. Then start turning to finer settings as the crank is operated. This way, the stainless steel milling cone teeth will never come in contact with each other, thereby damaging them, as the seed material is acting as a barrier. Still, I would recommend this item.