Well, I (finally) got my copy today, and its good. Its nowhere near as good as I expected from the demo though.
Gripes:
1. Using 'create a character' is fun, but the programmers definition of a 'very big' tattoo, is way off. Means that I cannot hook my 'mini-me' up with the amount of Ink it would need to be an accurate likeness

2. Career Mode is shaky: load and save and load and save and load and read pointless emails and load and save and fight. Then repeat again and again

It was a terrible mistake not to include training mini-games, and makes your progression very uninvolving.
3. Somewhere between the tutorial and fighting a CPU, the programme seems to decide to ignore all requests for ground game actions. on the demo, I could get the characters to roll, vie for position, and even try submissions. No joy on the finished game so far, though this may be down to my career attributes. We shall see.
I was all set to to give this a 9/10, but with the inertia involved in the career mode, gonna have to drop that to a 7/10.