Maril was excellent during her presentation & very down to earth. We saw Lucy become calm & submissive (rather than biting us) before Maril left, and she has stayed that way ever since Maril left. We liked the fact that Maril didn't use treats during the training. It was a very interesting experience. Little did we know that we were the cause of Lucy's bad behaviors. We have already recommended Bark Busters. The training produced results in a very short period of time & was easy and effective. We love the lifetime guarantee that Bark Busters offers. It was a great investment in our family & our dogs quality of life. I wish I knew about Bark Busters a long time ago.