Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Avoid the Wagan 12V heated seat cushion.

AVOID THIS ITEM:During the time it works (if it does at all) it works very well. The first one I purchased lasted for 2 1/2 MN winters, not at all near as long as it should have but long enough to convince me to purchase another when I was unable to find any other suitable replacement.The second one I purchased lasted less than 3 weeks.BE AWARE OF REFUND REQUIREMENTS:Amazon only provides refunds within 1 month of purchase.If you do not time the return accordingly, or your cushion fails two days after the deadline, you will be given only a partial refund or no refund at all- REGARDLESS OF THE FACT THAT YOU WERE SOLD A DEFECTIVE ITEM.