See production pictures here along with a short video...
http://www.sundayinthepark.co.uk/ I hope they don't try to replace the UK cast. Although I never saw Mandy live on stage, I did see Raul at the Kennedy Center's production and Daniel is better (Raul is the best Bobby though).
Very few recordings are better than the OBC (Assassins just came to mind). This recording is not better or worse, but different and it is gorgeous.
Sondheim loves this production btw. He thinks it works even better now at the Wyndham than it did at the Menier because of the shape of the stage. He said that as soon as the brushstroke appeared across the stage, he started weeping (I did the same thing). That's how powerful this production is.
Something is stirring,
Shifting ground...
It's just begun.
Edges are blurring
All around,
And yesterday is done.