I have the all regions DVD version.
It is worth mentioning that the majority of the documentary is in Finnish with English subtitles. If subtitles bug you, this DVD may not be for you.
With a length of approx 2 hrs (if my memory serves me correctly), it is a DVD I tend to watch over a couple of sittings. With its mixture of interview with Tuomas & Jukka, and footage of recording albums, touring and hanging out, I notice something new each time I watch it.
Note, mainly revolves around Tuomas, Jukka, Marco and some of the roadies. Ie not too much Tarja or Emppu.
The interview with Tuomas shows a man who despite having changed through having a successful band, does not appear to have an ego. Runs through the forming of the band, the circumstances of Sami leaving, and talks about the ease or difficulty of recording each album, and much much more.
Beautiful shots of their home town of Kitee and Tuomas' island.
Lots of funny bits. Eg. Naked bungee jumping (with appropriate bits covered for the DVD), standard drunken tour moments (but doesn't overwhelm the DVD), and more.
The live section of the DVD isn't the greatest. I tend to view it as a bit of a support for the documentary. Basically, I wouldn't buy it for the live performance alone.
Hope this helps!