Instruct: Classify Amazon reviews into positive or negative sentiment
Query: extremely poor product and even worse service

Never,never, never buy m500 or any other palm unit. If the unit gets cold below 45 - it doesn't work; if it should slip out of your hands to the seat of your car it doesn't work. I called customer service and was told to send it back. 3 weeks later they say they still do not have it even though I have the tracking receipt which says they have had it for the last 2 weeks. The excuses- 1. they have moved the repair center 2. So many units coming back for repair cannot repair fast enough 3. Has only been 3 weeks most repairs take longer anyway 4. No one working this week because of the holiday 5. what do you expect me to do about it things take time.Poor product poor service buy from another company