Instruct: Classify the given Amazon review into its appropriate rating category
Query: Not happy!

Didn't kill the fleas like it used to years ago, so I was very disappointed. I used the recommended the first time for my house and it was like I didn't do anything. Then I did it again a month later but doubled the amount of cans used and it was better, but not satisfied, we are still getting fleas. Two cans did not discharge all the way, which costs money. Will try something else next time. So disappointed. Years ago it was our "go to" product. Not now.