From watching the PV (below), I was not impressed for some reason. I see a lot of girls, one magical girl, hear Batou (Akio Ohtsuka) and something that seem fairly stereotypical. I guess I was watch all these PVs at the same time without any subtitle (I didn’t use the one below). The addition of Pokemon/Yugioh style battles seemed childish and dumb at the time.
Then I watched the anime (MV-style highlights below)
I was not only pleasantly surprised but intrigued to a large degree!