I'm a little surprised at how negative the reaction is. I liked how they ended the show, but I didn't like the ending if you follow. This episode needed another hour. Not another stand alone episode, but another hour where they could've given us at least some semblance of an idea on how the students took over. I like that they took over, but I really needed to see some of it.
I really enjoyed this show, glad I gave it a shot.