I can't really answer either question for you, but I have some advice.
Please keep in mind that this is an anonymous forum. You can always get a response from a disgruntled former/current employee of a facility or someone who has never even been to the San Fernando Valley. I'd suggest that you tour the facilities first hand to get an idea if it is a place that you are interested in.
I understand your wanting to know about the "bad" facilities just keep the above in mind so that you do not pass up on, what could be, the opportunity of a life time.