***** Apollo absolutely responds to the training Roman showed us, but it does require us to engage with our dog too, not just the other way around. You can't be on your cell phone diagnosing your mother's email problems while walking/training your dog. We just walk the dog, pay attention, use the commands we were taught, and be nice to the dog. Roman is really good at what he does. We've been really amazed! Roman has also dog-sat for us many times and it has been a great experience. -Juliana S