They literally saved my puppy's. He is an alpha male dominant breed (cane corso). At 8 months old (80lbs) he bit me for correcting him. I called hoping they could take him and train him to be a K9. Instead Lester kept him for 2 weeks and taught me how to handle a dominant guardian breed. He came home a different dog. Now I can discipline him safely and without abusing him. Rarely do you find such high quality at a bargain price. The reward only training provided by Petsmart and advocated by people who do not have a dominant guardian breed had turned my alpha male into a defiant monster. Without the training of both me and the dog, sooner or later our beloved guardian would have had to be euthanized. Now I can control him even around other dogs who behave aggressively. The free Sat morning followup classes keep us both on track and provide me with most of my training.