Just saw this yesterday, love the graphic novels, and all of Gaiman's previous TV/film adaptations have been fantastic, so high hopes for this!
Awkward that TV series Lucifer is not compatible with TV series Sandman. Guess they have to be standalone rather than the same world now.
From watching the trailer, I think Gwendoline Christie will do a more accurate portrayal of Lucifer than the guy from the TV series - I watched a couple of episodes of Lucifer and just found it too comedic, to the point where I was questioning whether it was actually supposed to be based on the Neil Gaiman's character, or just coincidental similarities!
As far as casting goes, my only disappointment is Death - not because I think the actress doesn't fit (far from it, having seen the Death intro clip video, she does a fantastic job), but purely because I have a thing for cute goth girls