Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Was skeptical......but it works
Review: It works, it works, it works! Plugged this in and haven't touched in months and my dog is so much quieter. He still barks when someone rings the door bell but everyone in the house has noticed how much quieter the dog is. I have mine plugged in, sitting on a shelve near the floor by my computer desk and another one down stairs behind the TV in the living room and not hearing my dog bark all the time is nice. No issues, very simple and effective. I recommend getting a cat but if your stuck with a dog like me then I recommend you get this.
