If you are looking for an active pet to spend time with then this is the dog for you.  I have had many different types of dogs in my life and have spent over 30 years in and around the pet industry  and I can honestly say these are the best breed I have every come across.  We have a family with 3 children of various ages and these guys have fit right into our home. The more you teach them the better they get. German / Australian Coolies or Koolies as some call them, are medium size dogs (aprx 40lb) which will be your loyal pet, worker,  herder or agility partner, They will be your best friend for as long as they live.  They are a fantastic all rounder  that love a cuddle as much as having an eye for sheep, goats, etc . They are consistent  excellent performers at  agility, fly ball with speed that can’t compare.