Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Waste of Money

After reading the other reviews, I still decided to purchase, hoping that I would have better luck. My cat weighs 8 pounds and has medium length fur. Used Advantage for the first 4 years of her life, but it had stopped working. Used Frontline once previously a few years prior and it didn't work, so switched back to advantage. But now advantage wasn't working either so we needed to try a new kind. Frontline Plus was a waste of money. It has killed none of her fleas--I applied the first dose a week and a half ago, and applied a second does (after researching online whether it would be okay) at the one week mark. There has been no change. I'm glad I only bought the 3 month supply instead of wasting more money. I should have listened to my intuition, but I didn't and it was a waste of money. Our vet just got Vectra and my mom said it has been amazing on their two cats, so I'm going to try that next. Frontline Plus is definitely not worth it.