Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Defective electronics, lousy customer support.

This product does NOT deliver the quality or functionality that the manufacturer promises. We have been through TWO, out-of-the-box units that failed to operate in the way described. Swing, but no music. Mobile, but no music. Music, but nothing else. Swing that works only intermittently. Do NOT buy this product unless you want to keep returning it until you stumble across one that works properly. Repeat: Do NOT buy this swing!!!!