Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Go with the water based version instead
Review: The sensor and "ultrasonic" screech work (I can barely hear it). The cats hear it when it goes off. Their heads turn suddenly, yet continue on their merry way. I tried holding it up and pointing it at the cats directly, they did not seem to be annoyed or disturbed enough to leave. I tested it on a hyperactive daschund puppy (with my friend's permission). Its ears perked up and it went up to the machine and sniffed it.Worthless, I wish I could give this ZERO stars.The water spray version gave better results.
