I received the discs today. Haven't really dug into them in depth but here's what I can say so far:
The 6 movies are spread across 3 BD25 discs with 2 movies per disc. That makes each movie only around 10gb.
I prefer the German picture over the DNR'd Animeigo mess but with only 10gb per movie don't expect any miracles.
The best part is the horrible tinny sound of the Animeigo release appears to be gone! Part 4 was horrible on the Animeigo disc, but it sounds fine on the German version.
Unfortunately the German release doesn't have English subs so I will have to make a custom disc with English subs.
Here's a few screenshots.
http://screenshotcomparison.com/comparison/109721
http://screenshotcomparison.com/comparison/109723
http://i3.minus.com/ibycFDQ0A181Dk.png
http://i2.minus.com/i0OzESH4oE7Xs.png
http://i3.minus.com/ioxmrgoDReFmF.png