Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Dead spot. Poor customer service.

Purchased this and paid a professional mechanic to install it. After about a week, the car occasionally failed to start, making a click noise when turning the ignition key. Rocking it back and forth in 2nd gear would get it started. Clear sign of a dead spot. I called the Quality-built customer service number and was told by one of their reps that it was likely a poor installation with a break in the grounding.After checking the connections myself to no avail, I just decided to head over to Advanced Auto Parts, pick up a reconditioned starter, and swapped them out myself. As expected, problem solved. I should have saved myself the trouble and the cash and simply installed a reconditioned starter myself from the beginning. Lesson learned.