Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Terrible product

I spent a lot of time looking for a Bluetooth GPS unit for my T3 and ultimately settled on the TomTom. The software took days of troubleshooting to install - not intuitive at all and constantly freezes the palm; actually had to go through several hard resets of the handheld! I finally got everything in order and took my GPS for a test drive - it would not acquire a satellite signal. After 2 hours of driving with it i called PalmOne (from whom i bought the device) - they refused to assist and referred me to Tom Tom. Tom Tom tech support was unable to help and sent me to Palm... So i sent the device back, and decided to buy the Navman 4460. It was a breeze to install and within 30 seconds acquired a satellite signal. What a difference!