We have a 2.5yr old Chiweenie named Buddy that we adopted when he was 2. We took the off leash training with Bob.
Before training: Our dog would lunge at other dogs (dangerous for obvious reasons). We could not walk him anywhere, if he saw a dog it was game over. He would bark, and even escape his leash. Every walk was just pure anxiety.
After training: He walks perfectly on a leash without lunging. He still barks at other dogs if we walk around our apartment complex because he is super territorial, but outside our apartment he is fine. We took him to a OFF LEASH dog beach in San Diego and he had the time of his life. Even though this was focused on leash training, bob helped us understand how important it is to set boundaries and rules. Buddy doesn't jump on the couch/bed anymore. He doesn't try to run out the door when we open it, and he doesn't bark at our (human) guests anymore.
It didn't only improve the quality of our life, it also improved the quality of buddy's life as we're now able to take him anywhere with us