Tested. Working great. So much faster than hand grinding.. See pictures
it grindes coffee quite good but you need to put a lot inside. Thats why its not that good with spices. I tried to grind some of Kumin in seeds and it didn't grind it at all. I guess I would have to put 50g or more to make it work. also, you can't take off the head of the grinder so its diffucult to wash.