I'm another unfortunate who saw it. The cast did their very very best with the material they were given, and I even found myself impressed with Darius. The music was boring and forgettable, the staging was bland and made me wish 'Parade' was still in town, and I could have forgiven this, I could have forgiven ALL this, but the book was so wretchedly AWFUL that I still get headachey just thinking about it. The first rule of story-telling is "show, don't tell". Martin did PRECISELY the opposite! She'd have whole scenes of boring conversations where nothing happened, then bring on a Greek chorus to narrate things that actually sounded interesting (and no, people weren't acting them out while they were being narrated, cast members literally just stood there and spoke). If I ever encounter another book as wretched, I'm bombing the theatre, no questions asked. Happily, it was SO awful that I seriously doubt I ever will.
I still get nervous twitches when I see 'Gone With The Wind' buses. Good job I don't live in London yet. o_O