Saw this on Saturday night. I mostly went for the cast, especially Cherry Jones. The Glass Menagerie was the first Broadway play I ever saw and she was wonderful, so I'll happily go see her in anything she does in the future.
My snap judgement was that this play was fine and better if you're there for the cast rather than the material, but the more I reflect on it, there is something there. It's certainly not terribly heavy, but Daniel Radcliffe is great and it is well-suited for the times.
Regarding the stage door, Bobby Cannavale came out and waved on his way to his car, thanking everyone for coming. Daniel Radcliffe followed and was extraordinarily gracious with his time, taking pics and signing for everyone waiting in the "people who saw the show" area (not sure if he went over to the other barricade after).