Has a blissful score (and the Columbia Masterworks edition has Truman Capote reading a very small part of the original story - worth it just to compare against Phillip S-H's performance) and memorable performances all round
If you then wonder why it lasted only 165 performances on Broadway, it's worth checking its history in 'Not Since Carrie' - sounds like fireworks all round.
John Gielgud remarked to Coral Browne, "you know, Coral, Judi Dench is going to play Lady Macbeth."
"Oh, then I suppose we shall have the postcard scene!"