Garbage
Overall the game looks ok, but the first time I played the game I noticed some glaring errors on the map. You'd think someone at Paradox would have a map on hand, or here's a thought maybe they could play their other games and find out where Stalingrad is located. That's right, the site of one of the most important battles in human history is hundreds of kilometers away from where it should be. It's surreal.
The sound sucks. The same annoying interface clicks are present from the old games.
The AI is basically handicapped. Nations do not behave rationally, or historically. They just kind of do their own thing to thwart the player. Way to keep it challenging.
The only plus to HoI3 is it only cost $29.99. Just listen to your instincts and don't buy this trash programming (unless you are a masochist.)