I was there, as well.
Ms. Dewitt is, above all else, quite an affecting actress. She has a darling figure and quite a bit of physical grave, both of which she uses to her advantage. Vocally, she's not a powerhouse. She hits the notes and is hardly ever off-pitch. But she doesn't have (yet) the command of the music to really sail through the whole show.
As Eddie said, her Everything's Coming Up Roses was a revelation. Her Rose's Turn could be as well. What she (and every actress) needs for this role is a terrific, strong director. There are moments that need more exploration and others that are emotionally extravagant that could be more focused. But she was nothing if not a true professional who threw herself headlong into this mammoth role. With a bit of vocal coaching and a helping hand in building the character arc, she could be a first rate Rose.
A pleasant surprise, for sure.
And that Everything's Coming Up Roses...wow.
"I'm so looking forward to a time when all the Reagan Democrats are dead."