Have an addiction problem and want treatment? Tough shit. It breaks my heart to think of the number of people who finally got to the point in their lives where they actively sought out help, only to be basically turned away by Kaiser. I would imagine many of those people never got a second chance.
On the other hand, ACA put a dent into their ability to do that.
The non-insurance wing of KP is great, aside from some administrative problems - the main one being that they don't allow some specialists to limit how many patients get referred to them, so they can get overloaded. The alternative is presumably not being able to get a specialist at all, but many of the ones I deal with have waitlists 6 weeks long or longer. Specialist turnover is also quite bad, I've had 4 of my specialists quit in the last 5 years.