Instruct: Classify a given Amazon review as either positive or negative.
Query: Beltronics...Juck radar detector.

Got 3 tickets with this detector, not because I didn't react quick enough...because the detector didn't even detect the radar and didn't do its job. Don't waste your money! The first one I returned due to calibration failure. That one got me a ticket. The second detector...the officer said he got me with Lazer. That didn't work either. 2 detectors...2 tickets, you make the call. Beltronics won't refund money for tickets, even for a failed product.