I never liked Root so her demise did not upset me, surprised me because I didn't think they'd actually killer her off. It was revealing that Elias had survived the previous season attempt on his life only tg kill him off for real that disappointed me. Semeritan was wrong Elias wasn't a force for chaos, in his own way he was a source of order, keeping the criminal gangs of NYC under his single control. Destroying his power base than killing him off would actually bring disorder as the gangs fight among themselves again.

I always figured that lunatic Greer would be killed by the computer system he helped build than worshiped it as a false god. So I wsasn't surprised when it killed him trying to get Finch.

Of course John Reese's death in the finale was sad.

I wish I could hear Harold Finch explaining why he let his girlfriend think he was dead for years, when he suddenly shows up on a street in France beside her. Did he tell her the truth?

The final scene was wrong. Among all those white squares their should have been a yellow one marking Shaw out as "Prime Asset" or even the new "Admin".

The defeat of the bad guy's computer Samaritan made sense. How else are you going to destroy the most advanced computer system on the planet but with a computer virus.