Instruct: Classify Amazon reviews into positive or negative sentiment
Query: this is NOT the grinder you are looking for

The grinder is terrible for these reasons:1) Messy -- there is no seal between the rim of the cup and the transparent lid.2) Noisy -- there does not appear to be any effort to contain the noise associated with vibration. When you disassemble the unit you'll discover that the motor is mounted on plastic columns that are part of the black plastic mold that holds the metal skin in place -- meaning, all the vibrations of the motor are transmitted throughout the black shell, and then to the metal skin. Even while holding the unit with both hands, it was still louder than the unit we bought to replace it.