Spoiler free review:
Watched the first season. The premise is kind of interesting, if you can make yourself believe that WW3 or a global pandemic happens every few years. The agency's tactic of throwing shit at a wall, and hoping something sticks that knocks down a domino isn't really written all that well, and there were plenty of missed opportunities for moral dilemnas there. I mean, they sorta tried one, but it was just kinda dumb.
The show is really dragged down by the bland, unsympathetic, unlikable, and somewhat unbelievable lead character, who is played by one of the blandest actors I've ever seen. That and the poor and often lazy writing just makes for a pretty disappointing experience.
The show is trying to focus on the affects of groundhogging on the main cast, but just doesn't have the creativity or writing talent behind it to do that well. And the last episode ended in a bit of a weird place, just felt unsatisfying.