I'm not that impressed with the SP demo. No MP avail for me yet. Already the BF3 deals appear: preorder ME3 on Origin get BF3 free.
And I agree with the single player, it didnt show any of the story or dialogue and thats generally Bioware's strength.
I hope the pace of the drama is slowed down a bit in the full version. I didn't mind the direction Bioware went with ME2, but the drama feels very rushed and forced now. For example, the whole invasion of Earth scene I thought could have been fleshed out way more. Earth in crisis is dramatic enough, no need to have everything jammed into one cinematic sequence. On the other hand, the escape vessels being shot down with the kid inside was good drama.