The soup came out great, thanks for asking!
We actually got an impromptu dinner invite tongiht, and also are going away tomorrow, so the whole finished soup had to go into the fridge until we eat it on monday! Chicken soup is pretty forgiving though...

I cooked the chicken and liquid and onions for 3 hrs, then added the veggies for 3 hours, then the noodles at the last 20 minutes. Made about 4 qts of soup and it turned out fine. Of course, not much you can do to ruin chicken soup as long as you have some nice roast chicken leftovers to start with!
I did get the vegetarian slow cooker book that uses only fresh ingredients, it looks wonderful, and will write more about it later on, but must go to bed and will not be online much tomorrow...