I have seen everything the Mint has done for at least the last 12 years, and I would rank this somewhere in the middle of the pack: worthwhile, but not in the same category as the very best Mint productions, like London Wall, or the previous play they did by N.C. Hunter, Pictures of Autumn. The main problem, for me, was the play's complete predictability. I don't require a lot of melodramatic plot twists in a play, but it would have been nice if, by 10:30, something that couldn't have been foreseen by about 7:45 had happened. Still, getting from Point A to Point B was a pleasant journey, if not a terribly exciting one.
I thought the acting was all fine, except that the actor who played the doctor was directed to play him as over-the-top unhinged. I know the doctor was supposed to be an unstable character, but from the moment he appeared onstage, he came across as someone you would move away from if you found yourself in the same subway car with him, which I somehow don't think is how we were meant to see the doctor.