Karen came when I was desperate! I had a 150-lb. Great Dane who was a great house dog but not so great outside. I was afraid to go in the back yard with him with the constant jumping and attacking mode. Karen showed me that part of Vandy's behavior was caused by my lack of confidence with him. With her patient help, Vandy became the dog I knew he could be. At first I thought the methods seemed simplistic; but I assure you they work. Vandy was a joy to live with after three lessons, and I learned a lot too! Karen is great with large dogs, she knows what she is doing, and Larry and I are very appreciative of all she has done for Vandy and us. It is without any hesitation that I recommend Karen.