It has been a reliable product that I use regularly. And perhaps this is the best product for the money I’m willing to spend. But it is not my dream grind. Before I got this I had a local coffee shop grind some beans into an espresso grind and when I compare the finest this product can go to what I bought preground, there is no comparison. The grinds from this device are not entirely uniform and are not as fine as they should be for espresso machines.