In fact, I can't think of a worse finale among all the shows I've enjoyed over the years.
No action. The final two bosses went out with a whimper. You know who never got what was coming to him. All these buddies come with her to the prison ready to fight... and they just stand there and do nothing. The climax of the show was ... a vote?
Going in to the last episode, I was confused because I didn't see how they would wrap everything up in one episode. Sure enough, they didn't do a good job. Needed two or three rather than just one.
This would have been a series I'd recommend to others, right up until that last episode, and that's no longer the case. I'd now say skip it, and maybe just read the books.