It was brilliant! Mics all died and major sound issues caused the show stop but it didn't detract from the day at all. Particularly hilarious moment when the phone didn't ring either time it was meant to causing some great improvisation from Ryan, who then decided to do a bit of a strip-tease and throw various items of clothing into the audience after Jon's speech about him; then all the leavers came back on during the playout to dance like crazy.
Glenn Carter, Philip Bulcock, Suzy Bastone and Eugene McCoy were all in the audience which was lovely to see
Willemijn sounds incredible from the YouTube footage. Mind blown. Maybe the Louise Dearman fans left because WV was better than they thought she'd be and couldn't take it? Either way, pretty disgusting behaviour.
He is one of the best Valjeans I've heard or seen for sure. He'd do a great job as the Phantom (and probably be better, at least vocally, than Marcus as others have alluded to) and if that is how it ends up I'd book right away. Geronimo is also London-based for at least another year as he posted recently.
As for the new cast, I've heard Dan did really well as Valjean, his vocals are surprisingly powerful and Rob Houchen seems to be the the pick of the rest as Marius. Fits like a glove apparently, akin to other feedback in this thread too.