Grinder works but without instruction manual and videos cannot be found on YouTube or the Internet Perform the most basic tasks, e.g. B. Removing the front brush by breaking it. The grinder itself works well though, if you can only use half of the feature it's not worth the time. You don't have to spend 2 hours on the internet to find product information. And Revane won't let me ask a question. I don't want to rate the seller badly. However, you don't have a button to ask them questions.