We took our young, rescued, female mutt to Jeff after two other trainers helped us but couldn't make her obey us. He trained her to obey him in two weeks. Training us took quite a bit longer, but he is a patient man, and we really wanted a dog with good manners. It's been several months now, and she is a much better, happier, obedient young lady, much easier to love. Jeff really knows dogs and how to handle them. He's an expert!