It has an amazingly unique art style, where the texture of various clothes stay in place as the characters animate across them. It makes it all feel trippy and magical.
The characters are fairly creepy, and I was riveted while watching it. The setting was distinct in an early 20th century feel with a heavy military history, but off to the side of the real events, out in the country-side. For the life of me I can't recall the plot, but I remember there was a cool old-school motorbike and that should be enough for you.
I do remember the end including a very out of place mech battle, which kinda put me off, so that dings it a star, but most anime watchers (who are used to that kinda thing) will just take it in stride. Plus kudos for putting mechs in an old-school 10-paces pistol-duel setting.
Enjoy!
