We had done puppy & basic training, but we saw better results in the 1st session with Chris than months of training before. He is happier, less stressed; the barking & aggressiveness has stopped completely. I thought we could never take him to the park again, but he is a changed dog! He walks nicely on the leash & isn't aggressive anymore to other dogs. Chris was so professional & diagnosed his problems quickly & gave us concrete strategies to correct his behavior. I was amazed at how quickly he has responded & how long his good behavior has persisted. I was concerned that because of his age (7), it might be difficult for Henry to respond, but he caught on so quickly. I am telling all my friends & family how amazing Bark Busters is and what a great difference it has made in our quality of life! Thank you!