we did a 6 week class with each one of our babies. I have to say that Maggie May really benefitted from it, or rather we benefitted from it, she's a wild woman! lol
Just a tip, our trainer told us to only feed a small amount of dinner before class as we used treats in class. Hot Rod got full and as a result his attention span didn't last. I wound up taking cooked fish for his treats so he would fill up so quickly.
With Maggie, I cut up a zukes in like 4ths or smaller. She was on clicker training so she would get treated more. Good luck and have fun...it is amazing how they pick things up so fast. You'll really enjoy the class.