Saw the original, and saw it when Stockard went in.
What fascinates me about the production is the legendary strain between the stars. Klein infamously noted that they used to speak to each other for the first time every night when they met onstage. He later said "I don't know why she didn't like me; she married a man who looks like me." Which is true, Laurence Luckinbill is a similar type. I guess they buried the hatchet, as they've done charity concert reunions in recent years.
By the way, Arnaz was even better in the national company of SEESAW, which I saw at the Kennedy Center. She got a new number ("The Party's On Me") and gave a star performance in an admittedly better version of the show that even eclipsed Michelle Lee's wonderful one on Broadway.
"I'm a comedian, but in my spare time, things bother me." Garry Shandling