Not as realistic as i hoped especially yor, but the comedy is good. Reminds me a bit of Yotsubato just more serious and action packed. Twilight/loid is obviously the best part of the series .
The story is interesting, especially once you make the connection of it kinda portraying east and west germany of a certain time. Has nice hearty moments, but the superhuman strength is weird. Can see why its a big hit though.