Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Utter Rubbish & Very Poor Customer Support

I bought the 512MB model of this product a few days ago, set it up, plugged it into my computer and it worked for less than one minute. I have sent several e-mails to Oregon Scientfic and their selling agent (ExploraTrac), they have not even bothered to answer them. Contacted them on their 800 number several times and was told I would be contacted, no response. This is not a cheap product (at least in terms of price), however, in terms of quality it is absolute and utter rubbish and the companies customer service is non-existent. I would strongly recommend that no one purchase this product. I would rate it at zero stars if possible, the only thing they did correctly was take my money and ship this piece of junk to me.