I wasn't that impressed with the demo either, but for other reasons. I know it's on Pro difficulty, but there were a lot of putback dunks and ally-oops in my games. Also, I felt that passing is terrible. And the CPU makes too many passes when he's in the air.
Those are just a few complaints. The rest I just have to adjust to, like the new isomotion controls and post up controls. Other than that, it feels better and looks nice. The game isn't as fast paced, which is good for my playstyle.