Ubu is now over a year out of training and .... it just gets better!
I can walk him off-leash (rarely practiced, and only in limited circumstance) and expect him to come when called. We are still working on extended stays, but I can put him in a "down" and have him stay there .... at the dog park with other animals around.
No signs of aggression towards other dogs, and he has some friends he loves to play with. He tolerates all dogs big or small.
Cant say enough about Partners. The staff and training is first-rate!