Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Ali.H.W

WASTE OF MONEYi am not sure how this product works with the others but at first that i have tried this product the tray didnt fit on my teeth and the GEL gives me Gum irritation and few times of use the felt that my teeth will fall down because of the pain...Dont buy it if you think the price was cheap like me!!!