As for casting, meh. As for acting, even more meh.
Nothing wrong with a black jedi. Its just that storm troopers are clones right? How can one be black, unless they are all black??? Or it could just be a disguise for a scene or two.
I can't comment on any of the new actors but my enthusiasm for all of the new cast isn't very high. Worst of all is that twirp from girls. Adam Diver or something, he looks like a fool.