OK, I admit it: I was wrong.
Loaded up a game as Germany, and decided to grit my teeth and play out a game, just to give it a full chance. I'm actually quite enjoying it.

I've finished off Poland, and am sitting on the Siegfried line waiting for the weather to clear so I can attack.
Something I quite like is the increased build time for infantry units. I'm less enamoured about some of the dissent events, however, I must admit, the AI is even better in this edition than the old one. The UK tried an attack in Kiel which was only repelled back as I managed to get some armour over there in time before they secured a beachhead. Once Poland, had been taken and I'd redeployed to the French border, they attack in Konisburg- I then manually attacked Denmark to prevent them getting supplies and starved them off, though it seems the AI is much more agressive in this version. The French also tried to go through the Siegfried line, but were stalled long enough unit my troops got back.
The SS units are a great addition that, IMO, was something sorely lacking in the HOI2 game. One question on them though- I started off with two SS motorised divisions, and have just recieved an event which builds 3 mechanised (or armoured, I can't remember) SS divisions.
How many of these divisions will I get in total? They add a nice bit of flavour to the game I must say.