My timid Heeler loves Jackie. My exuberant Mutt loves Jackie also. She manages to keep these two, very different, dogs happy and managed during their awesome walks together. Jackie also lets me know when any unwanted behaviors (re)surface and makes sure we are on the same page as to how to redirect those behaviors. The consistency makes a great difference and I really like that she is positive-reinforcement focused. Jackie has been fantastic for my two friends and I am so glad they get to be her friends as well!