I've heard about this show countless times mostly in the US media.
I figured it was a very politicized show with the same old message
"US = Good, RU = Evil" This is what kept me from giving the series a go.
Only in late 2018 I've started watching and to my surprise It's not the case.
The show manages to give a fair and near unbiased view about Geo-politics, fractions, countries. espionage, ideologies.
Without telling you what to think or how to feel about it.
It doesn't demonize any side neither does it glorify the other.
For those whom refuse(d) to watch for the same reasons as me, if still curious just give it a try! It's actually a good show