I think that Izetta was good, too. (but It wanted the number of the stories a little more)
Mecha,like AZ, which smell of machine oil isn't seen recently.
The reason why Germany becomes the stage with an Japanimation, there are several reasons.
German sounds and spelling are cool for Japanese people.
posture on manufacturing: "Why is the equipment strong? Because it is made in Germany."It can easily explain it.
The influence given by a famous manga artist(Leiji Matsumoto, Kaoru Shintani etc ). They often portray German characters in Manga.
"判官贔屓", The explanation of the nuance which this word has is difficult.