Instruct: Classify Amazon reviews into positive or negative sentiment
Query: design is flawed

This mill is seriously flawed because it jams up from all the dust it makes. After a month or so it clogged with coffee dust and the motor seized. I removed the twistoff cleaning plug from the loading funnel and tried to clean the chamber. I got some of it out but it is impossible to get most of it that way, and after a couple more runs it jammed again. The mill is defective by design as there is no way to disassemble it for cleaning. Save your thirty bucks!