Perhaps that's because Strauss based this little comedy on his own life. He wrote the libretto himself, renaming the central character "Robert Storch." The plot deals with a real incident in Strauss' marriage, involving some Vienna Philharmonic tickets, a misunderstanding, and his wife, Pauline, here renamed "Christine."
As with most Strauss operas, Intermezzo has its moments of orchestral virtuosity depicting moments in everyday life. Memorable moments include the musical depiction of a backstage card game, (Strauss loved to play cards and would regularly take his fellow musicians to the cleaners before a performance) and a skiing holiday.
The part of Christine is a challenge for any soprano. (Strauss' wife was a professional singer herself, and her husband wrote the part accordingly.) Here, Mary Dunleavy tackles the role, which was originated in this production by the great Lauren Flanigan. Expect a review to appear in Superconductor sometime next week.