This grinder works, but it has two annoying flaws: 1) it's extremely noisy. If you happen to use it in the morning, you will wake up everyone in the house. 2) the container for ground coffee develops a lot of static electricity, causing the charged coffee grounds to fly out of the container and all over your counter. At first it was amusing to watch the little coffee grounds fly out of the container, but it soon got very annoying to have to clean up after EVERY TIME I use it.