Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A radar dectector worthy of its cost.

The Silver Bullet is by no means your "Ultra-Reliable" detector. It's produced with pretty low-quality materials, gives a lot of false alarms, and misses a lot of signals. For the record, it DOES do its job %60 percent of the time out of the box, but don't let that fool you. The Silver Bullet slowly degenerated in terms of radar detecting accuracy, almost to a point where it would only pick up lasers when driving past an airport. It served me well for maybe 5-6 close calls, but failed me on one that will make sure I never go back to the Silver Bullet ever.If you can only afford this Radar Detector, you probably shouldn't be speeding at all. Invest into a reliable brand such as Escort or Valentine, and get what you paid for.