I'm playing it now. It's decent, but it has a few problems. Don't take these criticisms harshly, as I tend to overlook the positives and focus on negatives in reviews. I am enjoying playing.
Likes: Use of railroads and highways, air forces.
I'm playing from Soviet perspective. I immediatly mobilized and prepared my troops. But some things went screwy.
1. The Germans took Paris, Brest, and one more French city, then called it quits. Now that's ok as they can be Vichy french, but then the French keep on fighting Italy.
2. Germans sneak attack in late 1940, with one dive bomber. When this is done, I use my knewly built T-34's and katyusha's and storm into Poland. It's summer of 1941 and I've already taken Berlin and liberated Denmark. Soviets were able to mobilize way to easily.
3. Strengthen somewhat the minor axis. They actually leave some cities unguarded. I blitz Finland with only a few units (the real Soviets got horribly bloodied there.) Same with sweeping into eastern Europe.
4. It would be nice to know the unit stats of special units (like the SS Panzer and SS infantry).