Kristen is amazing with my Boerboel Luna. I got Luna as a puppy during the start of COVID. She didn't have a chance to be properly socialized due to that. Luna had begun to become aggressive and short-tempered with the other dogs in the home. Luna is a 120pd little girl that is unsure of other humans. Never aggressive to humans, just shy. My vet recommended exercise to decrease excess energy. The first person I tried was a male that was visibly nervous with Luna. I switched to Kristen and it has been amazing. She is patient with Luna and struggles through with Lunas fears of leaving me and the home. Walks are becoming easier, and I can definitely see a behavioral difference when she comes home without all of that pent up energy. Shes become much more playful with the other dogs also. Highly Recommend