Caught this tonight while in town for short visit. Went into it skeptical about whether I'd enjoy it, as I'm not a screaming diva fan. It way exceeded my expectations. The beginning and end are a bit rough (there was some kind of traffic jam in the choreography in the beginning where "Jane Seymour" had to scramble to get into place) but I thought each Queens' songs did a good job of differentiating each of them. My favorites were Ann Boleyn, Ann of Cleves, and Katherine Howard. Was not really impressed with Mueller; maybe it was an off night. The applause was a bit subdued for her song compared to a few of the others.
This is one where it really helps to go in informed about how this show is put together and to read the playbill write-up about each queen prior to curtain-up. If you accept the pop concert conceit, you experience the audience reaction as part of the performance. At one point, "Anne of Cleves" told an audience member, "Not yet," when s/he whooped too early, It worked, IMO.