John was extremely patient, very thorough and re-addressed all questions that we were unclear on until we understood them completely. I was amazed that John got the results I had been working on for over a month within ten minutes of his arrival. I'm all about positive and natural reinforcement. I was extremely pleased with Bark Busters training techniques. The training experience was very enjoyable, especially seeing results so quickly and watching Elvis respond so rapidly. I would recommend John Sullivan and Bark Busters Dog Training in a heart beat. In fact, I've already made two phone calls this afternoon to people waiting to see if I was pleased with the results. Have you ever been around someone that seemed they were meant to be in a position? That's John. He is absolutely fantastic and knowing that I can call him any time if I have any questions is a quality that I am truly grateful for.