I'm in agreement with all of the "beautiful mess" comments. I kept thinking throughout, "What would Michael Bennett have done?" He tried "Scandal," but couldn't get that produced. I mention that because everything that raunchy musical attempted, this romantic music fails at. There is so much beautiful dancing, but the story is so generic and unclear. Terrance Mann is wasted, given a pattern song in Act One, and then a big anthem in Act Two that never reaches any sort of dramatic climax. As Andy B is now proving, he is only one half of a great idea. He needs Thomas Kail or a director with a strong vision to shape story. There are no stakes here. Plot is repeated over and over and over. Poor Terrance has to say about 10 times, no kidding, the reason his daughter must marry is because of tradition and saving his country. (PS- the reason they go to Paris is because the King is trying to rekindle something he has lost with the Queen...this is a similar courtship his daughter is having...but none of this is clear).
Word of advice...in the second act, the jilted wife has a song. It's almost a roof raiser. But the big musical theatre moment never arrives. They cut it short and leave the actress to exit in a hurry. You must give her the big moment. Write a final verse for her!
Cut the replay at the top of Act Two. You're not saying anything clearly enough in a show where everything is unclear, more or less.
Try to make this a two hour, no intermission story. What happens if you cut it down and are forced to clarify story, rather than keep extended dance sequences?
Replace Kate Nash. She's charming, but comes off as an amateur.
Get a new lyricist to help her. Wow, talk about horrible lyrics.
Despite all of these negative criticisms, its a beautiful evening and deserves a chance to figure itself out. But do the work! With no set, its easy to cut and change anything. No excuses.