Instruct: Classify the given review into positive or negative sentiment.
Query: Don't waste your money!!

My 9 year old son has been wanting this for a long time now. I finally get it for him. Its really hard to get the panels in. After putting the panels in we can't see the image on the blank piece of paper. We tried by light and nothing. He was very dissapointed and said he hated it. I think they should take it off the market until they can make it useable!!