Despite my impression that I was familiar with the opera, I had only heard it live once at the Holmdel Arts Center, as a concert. And despite my not having seen this before, the opera felt very familiar. Perhaps it is the simplicity of the plot, or perhaps it is because the melodies (some based on Chinese folk songs) are very familiar to me.
I found today (23 Jan) a local review. Another case of the reviewer needs to go out more.