The explanations were very easy to understand and what motivates a dog and how to establish dominance without aggression. Things I interpreted as "being a good communicator" on my dog's behalf were really signs of her dominance. It was very eye-opening. The rules are simple to implement. Our dog had stopped jumping and was sitting and staying within one session. The third session was a "breakthrough" session on the leash-my dog went from an uncontrollable, pulling dog on the leash to a very controlled, by-my-side dog. This was accomplished by learning how to hold and correct her on the leash and by learning to read my dog's actions and body language and correct the bad behavior before it happens. I like the non-aggressive approach to training, especially since we have a sensitive dog. We had fun while making huge progress. Maril teaches you how to avoid getting frustrated if things aren't going well. In my case-short and repeated training worked best. When the lesson wasn't going well, it was a matter of slowing down and regaining control. I would absolutely recommend Bark Busters. I know what a well-behaved dog should be and I feel I have learned skills to help me train my current dog as well as any future dogs we may have. Well worth the money spent and so convenient as well!