In my opinion the best manual mill at Hario. It is easy to adjust, it has no unscrewing problem, the mechanism is solid. The small plastic cover protects coffee projections, it avoids dirtying your kitchen. Ceramic blades seem tireless after months of regular use. Only problem, the plastic around the base is quite fragile little he fell under the wrong angle. The good news is that the ground coffee tank will not break easily, it.