I actually saw this a couple of months ago out of curiosity. You get treated to some delightful behavior from Cochran, including hitching rides into the city, joining somebody's dinner in progress at a diner and helping herself, dumping out her bags in the lobby of what looked to be MTC's City Stage space to find her ticket, and more.
You learn a bit about her life and her extremely strained relationships with her kids (particularly a nasty dinner scene with her daughter), but largely it leaves more questions than it tries to answer (she is not without money, as we learn she takes annual trips to a tropical beach). Her extreme hoarding and her often hostile, entitled, and rude behavior at theatres go unaddressed.
"...everyone finally shut up, and the audience could enjoy the beginning of the Anatevka Pogram in peace."