Instruct: Classify Amazon reviews into positive or negative sentiment
Query: DO NOT BUY

Very poor Battery life. But worst of all is the tech support there are no vista drivers for this. emailed tech support they me to change my OS to XP. then I called tech support and was told they aren't going to put a driver out, because the unit was built before vista came out. Also, it's very hard to use the gps in progams other than Miomap. The PDA/GPS is a great idea but this is the wrong one to buy.