Valkyrie Drive is the worst anime I have ever seen, not even the yuri could save the piece of shit anime that is basically hentai.
So funny how terribly wrong you are.
Your right Im really wrong when the plot isn't like a generic shoneun manga or anything the bad guys lose and the main characters saves the day The plot should win awards for how well its written, I cried at how good it was. It made me think what life is really about and how im living it the wrong way. I should just sexual arouse everyone I see, you never know what powers that lie within them. Sarcasm
You're right, the plot is essentially a shounen but well, that kind of repetition is to be expected on any kind of long running genre. Is like bitching because 70% of yuri series happen in high school, it comes with the territory.
Having said that, VDM is supported by its excellent characters and it gives enough twists to the usual tropes to stand out among the genre.
It is very erotic but it was always upfront about it so expecting something else is absurd. Personally, those sequences took a backseat at the amazing characterization.
And hey, the series got a huge female following and left its mark in the fandom. Nothing bad for a new IP