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

I have owned this item for only 2 years. Have used it about 6 times. Battery pack won't jump, can't charge with the wall charger. Was told by technical support at the company that if I didn't charge this every 90 days - which is NOWHERE on the packaging, battery, etc. - that the unit would fail, and a replacement battery for the unit is $85 for a reconditioned one.This is what's wrong with America - nobody stands behind their products!