The therapist was clear and easy to understand and could answer all of our questions. I noticed immediate results and was surprised that the techniques had such an effect and was pleased with how well it worked. At first I was hesitant to take command as I was afraid that it was upsetting my dog because he is so used to being coddled, but it worked out well and he still loves me. Having a 13-year-old dog, I wasn't sure that we could change his behavior, but there is a marked difference in his behavior. Bark Busters has made my household happier.