Instruct: Classify Amazon reviews into positive or negative sentiment
Query: poor factory quality control

The unit arrived yesterday. When I unpacked it I plugged it in and it started up normally. Then I noticed the entire control unit including guages and tubing were shaking and that whole unit was loose. Also the face of one of the guages was bent and broken and the safety air bleed valve was broken off so I needed a pliers to bleed of the air. The shipping box was undamaged so I'm sure it was shipped from the factory in this condition. Needless to say I am sending the unit back for a refund. Its too bad since I own some other Hitachi tools and they have been great.