Instruct: Classify a given Amazon review as either positive or negative.
Query: Simply Doesn't Work

This product is extremely cheap compared to the major brands like Frontline and Advantage, so I was concerned it was too good to be true when I bought it for my cat Sprinkles. Turns out I was correct. My cat didn't die or get sick or anything like you see in the other one-star reviews. I applied the product properly and it didn't work at all. Sprinkles had a large number of fleas weeks and months after using Sergeant's Gold. Thank God this garbage product is only $10 or I would be furious about my wasted money.Thankfully I did learn that it doesn't work to be cheap about your pets. I'm also lucky my cat didn't get sick. I ended up going to the vet and getting a more expensive flea treatment, but at least it worked and my cat is doing great! Look for a better brand than Sergeant's Gold.