I've now been to see them, and Oh. My. Gawd. They were AWESOME!!!
I would recommend anyone go see them at Sonisphere!!
You must.
It's now the law.

There was only one other band on with them, called CombiChrist, and They were a really good opening band, really put me in the mood for it!

The pyrotechnics were really good, and in large quantity, lol, I can tell ya, I wasn't cold that night!!
So many things happened: Lazers, babies dropping from the ceiling (no, not actual babies, don't worry, they were only dolls), members of the band crowd surfing, fireworks, Til chased the keyboard player round the stage, picked him up, put him into a bath, then rose up to the top of the arena and dropped sparks all over the bath.

Lets just say it was awesome.
Go to see them.
Now.

That is all.