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

I usually use a different kind of tidy cats litterTidy Cats Scoop 24/7 Performance Long Lasting Odor Control for Multiple Cats Cat Litterbut when I was at petco they mislabeledPurina Tidy Cats 24/7 Performance Litter, 10-pounds (Pack of 4)for a price of 2 for $5. They only had 5 left so I bought all 5 for $12.50 and was so stoked by my purchase. I thought that the two litters would be pretty much the same just different packaging. Boy was I wrong.The litter I used to have had very small and fine litter but the new litter was chunkier like a bunch of small rocks. After the first day my cat used the litter and it really bad. I scooped up the poop and threw it up right away. I have two cats and by the next few day I never noticed any pee clumps, all I was scooping was poop. Shortly after, the smell of pee was atrocious. This litter does not CLUMP! Such a disappointment.