Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Brand New, Out of the Box, Did Not Work

I bought this unit to store some dehydrated food for a backpacking trip, and received it brand new in the box. After several dozen attempts, it never was able to seal anything. When I tried to use the vacuum sealer, it made a strange noise and then quit trying, giving me a flashing error light every time. I researched around online to see if there was some simple fix or something I was doing wrong, but I couldn't find anything. I thought the design of this V2840 was cool, but in my opinion I should never have to wrestle this hard to get a brand new product to do the only thing it was designed to do. What a joke! I'm probably going to try a simpler model ... don't waste your money on this one.