Instruct: Classify an Amazon review into positive or negative sentiment.
Query: The repair guy hates this model

Within 6 months of purchase the self-propelled feature broke. Repair guy said it would be $100 to fix but the vacuum would still work without it so we passed on getting the fix. 6 more months the on/off switch broke; easy fix for $20. 6 months later the brush is having rotating problems (not a belt problem) so we are now shopping for another vacuum.