Nightwish singer Anette Olzon writes on her official blog:

“I think it’s a great and varied CD. The feelings in it are great and there are a lot of elements in it, so I am sure it will have many different favorite songs for the listeners since the songs are so different in styles and sound.

‘Dark Passion Play’ is a great album and this one, too, so I don’t know yet which one I like more, but, of course, for me personally, this one feels better to do since the songs are more adjusted to my voice and my style.”

Source: Blabbermouth.net