Otherwise applies as the first season:
The setting in the 80's is awesome.
The mixture of episodes of dialogue, past, everyday .. is good. There is little "feeling-blah-blah" and what is included is really realistic and not exaggerated (the tensions between the "spouses" etc).
Who has knowledge of the circumstances at the time and the spirit, the will feel quickly sucked into the time.
Watch!
They want to see the blood, murder and manslaughter are usually wrong. There are scenes of violence, but the tension is mostly just supported by the intelligent and interesting twists in history. And to stay with the reality, agents murders were very rare, as these (as in the series as well) very quickly lead to escalations that will bring neither side what.
I can understand the series (at least in English) recommend without restrictions!