I've been to one of their concerts and hearing her live is like listening to the CD.
She was hitting the notes just right also right from the start, quite unlike in the Evanesence DVD I have. that singer needs about half an hour to get her voice warmed up.
The band is amazing in a live performance. And they have a lot of humor
The band already started a song a bit too early while she was changing her outfit, so she already had to start singing while still somewhere in the back. Coming up on stage she had to turn around a couple of times to rearrange her boobs and they where all just laughing and grinning. It was really funny, but you had to be there I guess.
If you ever have a chance to see them live .... do so and you will not regret it!