Honestly ...
Good, but this show is pretty gritty and she is always beat to Hell and sometimes looking kinda rough. But Hell, that might make it move for ya, I don't know or judge.
She was definitely brought in for some star power and while she has a major role in it, it is still support at same time. If you don't like the show, I'm not sure you will keep watching just for her. But I might be wrong. And I'm only through 6 out of 13 shows. Vince D'onofrio is in it, too, as the Kingpin (but they are going gritty and somewhat "real" so he is just called by his regular name) and he's pretty good. KINDa freaky looking as a completely bald dude.