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

I used Frontline and my dog still had fleas, so I bought this thinking it would take care of what the other product didn't kill. Unfortunately that was not the case. I sprayed it directly on a flea on the bed even and it didn't even react. The smell isn't bad, and the price isn't bad, so I'm glad there's that at least, but otherwise a total waste of money.