I watched this over a couple of days. At times I was willing time to pass more quickly so I could get it over and done with. Little things irritated me that just weren't believable or likely. Side plots that weren't relevant had clearly been stuck in to culminate in the next twists and turns.
I wish I knew the location of the prison. It's a magnificent piece of architecture. However, for what appeared to be a thousand women, there only ever seemed to be five or six prison screws present at any one time. No wonder crime was so rife there.
The finale was not at all credible especially in terms of who lived and who died. And I refuse to believe that the survivors would not have been restrained.
All in all this was unsatisfactory. Ok, I watched till the end but I can't really recommend it. There's much better out there.