I saw this in San Diego and was very disappointed. I hope they've done some re-tooling and some recasting (Charles, specifically). I mentioned this in my review of the show, it desperately needs a device, maybe she is being interviewed and she's remembering her life, or build the show around her iconic dresses (which were stunning), or even MORE bold, have the actresses playing Camila and Diana change parts at intermission. One of the issues is that the writers are American, pretending to be British, and you can tell. Having seen SIX a few times now, the score/lyrics for Diana lack all of the charm/tongue in cheek/wit of SIX (which is written by Brits).
"Observe how bravely I conceal this dreadful dreadful shame I feel."