I am a veterinary technician and am currently using Bark Busters. Many of our clients have used them for their pets and we recommend them to EVERYONE! I have 2 hounds who like to run and bark at the fence, jump on people when entering the house and one of my boys USED to growl when he saw my 1 yr old daughter coming towards him. Now, with the help of Michelle he no longer growls at my daughter, he gets up and moves himself to a different location. They are doing really well at jumping and we are still working on the fence thing (it doesn't help that my neighbors dog is CRAZY)! So i would and DO recommend them to people I know!