Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Overall a good experience.

The shipping speed was decent, but the product didnt really meet my expectations. Upon getting the product I had some difficulty getting it to work in my car, but it did. However, once I started using it I found that it gave off a large number of false alarms. I also expected that it would warn any time a police officer's vehicle was nearby, but not once did it alert me. But really, for being a quite expencive piece of equiptment, I was definetly dissapointed in it preformance compared to other, cheaper radar detectors I've tried