The music was amazing, and these actors were clearly hired for their voices, with the possible exception of the Lieutenant, who may have been hired for his chest. Best chest I've ever seen in my life.
That being said, the acting is not there. The lead man, the French count, has an accent as spotty as a leopard. He missed lines, stuttered his dialogue, and the only emotion he was able to convey was pain, as if he was constipated.
The female lead is detached to the point of aloof, when she sings of her love for the Frenchman, we don't believe it. She sings of being happy and gay with the enthusiasm of a visit to the dentist. I thought perhaps it was part of the plot, that she was only pretending to love him and using him for his money. But I was informed at the break, no, she really does love him, she just can't act.
During the singing of "Wash That Man Right Out of My Hair" the lead actually washes her hair, causing her makeup to come off and her hair to be pulled back for the rest of the first act. This showcases the huge microphone in the middle of her head that was previously hidden and makes her look like an alien. With no make up, you can also see her age, about 45, playing a girl of 20.
Combine all this with a VERY dated show, there's a reason it has never been revived, and a non-sensical go-nowhere plot, and I left after the first act, at a whopping 1 hour 45 minutes long.