qolbinau, because the show is so far away from Broadway, I don't want to spoil anything, but Chita's best moments were anytime that she started dancing (because it seemed to fit so naturally into the piece, even though it isn't a dancing show. Plus at 81, watching Chita dance is like watching a small miracle) and also there is a moment where she is trying to convince the town to do something horrible (no spoilers) and it is a remarkable bit of acting on her part and an incredibly stressful moment in the show itself.
Also, I would like to say that the show is around 105 minutes and I think the one act works very well, as the tension rises so steadily and intricately that an intermission might ruin things. Also, this production isn't exactly small, as there are probably around 20 people in it and it has a large orchestra (which sounds delightful).
Anything regarding shows stated by this account is an attempt to convey opinion and not fact.