Instruct: Classify Amazon reviews into positive or negative sentiment
Query: disappointed

I was very disappointed with this product, first of all based on the weight of two pounds, I thought this was going to be larger. I was at first going to return it but I thought I would just use it in conjunction with the one I already have. It, unfortunately, is not accurate. There are times when I put a coin in the slot and it did not register the value of the coin or count it, also whenever I put a penny in, it would count it as a dime and added 10 cents instead of just one cent. So I am not too happy with this product.