Like many others, I was absolutely amazed at how well my hyper hypo Lulu responded to our lessons with Karen! She was like a new dog within minutes the very first visit, and has only continued to improve over the last couple of months. Bark Busters' approach and techniques were exactly what I had researched but had no idea how to implement - and I extra appreciate that our training does not include any type of negative feedback for our dog - no yelling, no submission, no choke chains. We've simply learned to speak Lulu's language and can effectively communicate that we are the boss. She LOVES her lessons, too! She gets super happy when it's time to leash up and practice, but then focuses very well and continuously. We have even reached a point where Lulu is my running buddy without dragging me face-planted to the pavement down the street. I can't recommend Bark Busters and Karen Schellenberg enough - my dog is a much happier creature - less stressed, better behaved, and happy. My husand and I are, as well!