I purchased this last April and so far has been doing a good job of grinding my coffee beans. I use it woth both medium and dark roast beans for drip, aeropress, and my moka press. I like that it can give me a variety of grind size and is grinds the beans mostly evenly. The only thing I don't like about it is that after grinding, all the grounds does not completely empty out of the chamber. If I take out the upper burr and turn the whole unit upside down, a couple teaspoons of grounds fall out! Now if you don't care about taking exact measurements for your coffee this might not bother you as much. But for me, since I weigh the beans before I grind them and make the exact amount for my cup, this kind of irks me and is a waste of coffee. Also, after a month of using it and consistently cleaning it after every use, the upper burr has developed corrosion already. I have already contacted the manufacturer about it and they have yet to respond.