Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Treadmill

My treadmill is 11 years old and I have never serviced it, but it gets used daily. Circuit breaker started popping after about 3 miles. Bought this lube and applied it and now treadmill runs like new!! I thought I was going to have to replace the treadmill, so this was money well spent. Good directions. Shipped promptly-no problems.