100% the best grinder on the market. You cannot get a better design. End of story. Period. The only thing I will say is that the review above who's claiming that it preserves flavor doesn't make any sense because that's not how life works and that's superfluous information not relevant to the durability and longevity this product offers. This is literally the last one I will ever have to buy because you aren't going to have a grinder better than this.

I’ve been using the AROMA-3 for four months now, and it’s the best grinder I’ve owned. I’ve only cleaned it twice in that time, compared to weekly cleaning with other expensive grinders I’ve had. The teeth stay clean and the aromas don’t stick or get trapped.
The grind is consistent and fluffy, and it preserves the flower’s flavor well. The build quality is excellent and clearly made to last. I was so satisfied that I recently bought the new AROMA-3-XL. It has a larger capacity but the same reliable performance, handling flower easily and effectively. Overall, both are solid, low-maintenance grinders that do the job better than anything else I’ve tried.