Mr. 'Solid' can have his say, but I was there last night as well and thought Comer gave one of the greatest performances I've seen in 50+ years of theatergoing, including having seen Maggie Smith, Judi Dench, Glenda Jackson, Coleen Dewhurst, Julie Harris and Jessica Tandy. Her performance is every bit as good as advance word has said. I think it's a very strong play as well, in the great tradition of stage courtroom dramas, and very accessible but with urgency and purpose that makes it of this moment. I wouldn't miss it.