When I was in high school, I thought the productions were spectacular, but in retrospect I dount they came close to being that good. In 1969 or 70, I saw a Springfield, Ohio, high school production of Flower Drum Song that was positively amazing. The cast was good, and the orchestra really excellent. I also remember seeing around 1975 a Middletown summer high school production of No No Nanette that was equally good.
Around 15 years ago, I saw goddaughter Charlotte in the Horace Mann School's production of A Funnyt Thing Happened on the Way to the Forum, which I was dreading, but duty calls. To my surprise, it was wonderful: there were no cuts to the text, so it was bawdy and very funny. The school hires Broadway musicians, so the band was also excellent.