I enjoyed this series quite a lot, find it a bit underrated.
It's a fun super heroes story with some nice plot twists, great characters and a few nail-biting cliffhangers (grrrr haha). Had some good laughs here and there as well.
it's not about pantie shots, mindless fighting or sappy romance...it has a soul this anime. If you're not sure about this anime, give it a try, I sure think it's worth it.