I have a 1 year old Chinese Shar Pei who was showing signs of aggression toward my daughter along with other dogs when we would go on walks - he seems to think he is protecting me. Our vet suggested we seek out a Behavioral specialist for our dog and there were only 2 in our whole state and neither were close. So I took to Google and found Sam Ivy K9. I figured something had to be done and quickly before something bad happens. When they suggested a prong collar and shock collar combo to help I'll admit I was hesitant at first but trusted that they wouldn't harm my dog. I loved our trainer Holli. She was so knowledgeable and helpful throughout our training. I am shocked at the way our dog behaves now weeks later, its like a whole new dog!! We can confidently now take him out with us and not fear he will lash out at other dogs or people. I would highly recommend this company to other people in helping train your dog. I can't express how happy we are with the service we received.