Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Nice but

The unit is reliable and works nicely.I take away one star because of itsirritating default sound setting. It blastslike a siren inside the car, whichis utterly stupid. You are not tryingto wake up anyone; the driver is already awake.the sound is louder than my smoke alarm inthe house. If I had known this I wouldNOT have purchased it.