Dave with AADT is an excellent trainer; extremely knowledgeable, wonderful with the dogs, passionate about his craft and an all around nice guy. We rescued a puggle, "Bob," who exhibited many aggressive behaviors. He would sometimes bully our older golden retriever, bark uncontrollably, pull on the leash, etc. Bob is roughly 5 years old, so we weren't sure if his behavior would really change much. Our rescue organization recommended Dave, and after just one visit, we noticed changes in behavior, and Dave gave us great tools and exercises to practice and continue progress. Dave had a total of two long sessions with us, and we've seen wonderful improvement in Bob, and he is getting along much better with other dog. We VERY highly recommend Dave and AADT!