I enjoyed my USSR playthrough very much, I like the optional reduction in micro-management, but the music grows tiresome. The game has some really nice potential to proceed further into the cold war. Good progression/adaptation to the situation after one faction is beaten, unlike earlier games. I would guess there'll be nation and timeline DLC-packs later on.
But, the main issue is the forced liberal view point of the game that it forces upon you. They try to describe things through a non-liberal perspective to get into the caricature hollywood-commie "mood" but it just fails in a straw man ironic humor type of way, that belittles everyone else. The devs don't know the basics, so focus descriptions turn out to be really stupid/amateurish, among other things. C'mon "ultra-left" comintern, really? Or fascists getting glad about "anticapitalist" policies, when they are there as a reaction to safeguard the capitalist relations of production in the first place. But that's just concerning accuracy. However, I think there's a fallacy when you're labeled paranoid when dealing with a supposed trotskyite plot, and basically a failure when you end up with a civil war (for some reason) when you don't deal with it (so in reality you weren't paranoid in the first place).
Labling the USSR a "totalitarian" government with no elections is just wrong. Shading Hitlers portrait is also a really bad decision, as if all bad things were randomly up to one single guy, who "happened" to do crazy things, and not as part of a system. There are dozens of "Hitlers" in the game already.
I also think there should be a compulsory civil war as a reaction to communists growing larger in a country. Not-in-name-only communist parties winning elections (or getting close enough) in bourgeois so called democracies is just a crackpot fantasy.
It's a good game, but if you like accuracy, combat, logistics and good troop management I would suggest "Revolution under Siege".