Season One was brilliant.
I have no idea what happened with Season Two. Peter, the actual Night Agent, is like a cheesy B-character. Rose, an apparent civilian, keeps turning into a super spy ninja with all the answers by magically tapping as at her computer and despite wanting leave never actually does. She's absolutely insufferable. It's ridiculous to the part of being unwatchable. The Iranian side story is the only thing that was entertaining. At this point, I honestly think they'll come back with season 3 with Rose as the lead. If you haven't watched it yet, don't. Enjoy season 1 and pretend it ended there.