Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent Radar Detector

I researched radar detectors extensively before purchasing this one, and I previously owned a nice Bell Vector.The Escort 8500 X50 is definitely one of the top detectors out there for a reason. I've found it to have excellent sensitivity and range with a reasonable rate of false alarms.I'm very happy with my purchase and I'm glad I choose this one.