This program performed as advertised. Blas was extremely professional and patient (but firm). The technique they use is very effective and quite frankly, probably saved my dog's life and kept me from getting dragged into court. I have a pit bull and he was heading down the wrong path, aggression, undisciplined behavior, excessive barking, etc. Now, with the techniques I learned from Blas, I can walk my dog around the neighborhood, public events, even at the dog park without fear of something bad happening. He is well behaved both inside the house and out in public. Very satisfied and my neighbors are much happier.