I was there last night too and enjoyed her different take on the role from an acting perspective, but I thought her singing left something to be desired, especially during "Cabaret" and parts of "Maybe This Time."
I think Sauja is right about an uncomfortable pause or two, although I didn't think it was because she was going up on lines, but rather that she was nervous about staying with the orchestra. Maybe she only had one full run through with them before her first show so hopefully in the future she can worry less about stuff like that as she settles into the part.
Williams was vulnerable and neurotic. Stone is a fighter and survivalist, and I really felt her connecting with and understanding Fraulein Schneider's decision not to marry Herr Schultz more than other Sallys. I've seen some Sallys really seem to be falling for Cliff and the life they could have together, but Stone's is not a fool and living in a land of delusion. If Williams was Sally (Durant Plummer) then Stone is Phyllis. If Stone moved back to PA with Cliff you could totally hear her singing "Could I Leave You" to him in 20 years.
Overall the show is in great shape, and for me it's still all about Linda Emond. Her "What Would You Do?" is the clear highlight of the evening.
Marie: Don't be in such a hurry about that pretty little chippy in Frisco.
Tony: Eh, she's a no chip!