I can’t tell you what a huge difference it was for us after Mark worked with our German Shepard Husky mix. Mark was so helpful in explaining to us how to continue to work more with our dog and giving us great tools. Mark was also very patient in making sure we were able to walk our dog, and had us practice each thing he was trying/working on. It has been such a huge difference in behavior and ease of walking! I can’t believe I didn’t call Mark earlier and will certainly be taking our other dog to him soon!