Claudia Kariuki makes a fantastic debut as Sarah and I think will only get better in the role as the run progresses. Audra Macdonald's vocals are so extraordinarily memorable though that I found myself being slightly disappointed. It doesn't help that she is also partnered with a weak Coalhouse Walker Jr. in Rolan Bell. Who seemed to already be having vocal difficulty with the role and was playing the immaturity of the character so much that his presence eventually became rather annoying.
I don't want to spoil the concept behind the production but will say that both modern dress and period clothing are worn by all the characters, and to sometimes shocking and thrilling effect. Go see it. The more I think about this production the more special it seems. I will definitely be making a return visit later in the run.