Thursday October 23rd @ 12:01 AM: I sent an email asking if there were any details in respect to how she reacts to other confident dogs etc.

On Thursday October 23rd @ 8:35 AM:, I received the following:
"My contact is going to the shelter this Saturday to pick up another puppy for me and I've asked her to assess this girl while she's there.  She is with X and is very dog-savvy, so I would trust her assessment.  But it's always kind of a crap-shoot if the dog is being assessed while at the shelter.  Shelters definitely bring out the worst in most dogs. 
The pup is about 6 months old."