Dave helped us immensely with our five-year-old Yorkie mix, Max. Max's behavior at the door, getting the leash on, getting the muzzle on for vet visits -- all that and more had gotten incredibly difficult. We saw *significant* improvements -- in just a couple of weeks -- with minor changes to our behavior and patterns. Dave is both personable and results-oriented, while also demonstrating his love for dogs, including ours. We recommend Dave!