Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A terrible product

I used this last year, according to directions, with good soil prep and plenty of water. I got a little bit of weak, thin grass mixed with some very hearty weeds. I've always been a big fan of Scotts products but I can't imagine what they were thinking with this one. Shame on you Scotts. What a disappointing mess... I've put down real grass seeds this year and they're doing well. But I'll never get rid of all those weeds.