Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worthless Beware

I got this before i went on a long trip so i could feed the baby on route. Before i left I tested it worked fine but when i got on the road it stopped working it would flash a flame once then die out. After my trip i bought more thermacells as i thought that the one that came with it was bad and the same thing i see a flash of it lighting and then nothing. For all those people traveling i discovered that if you go into a gas or service station and ask for hot water for warming a baby bottle up they will give a cup free. (Even in a starbucks). So dont waste your money on this.