I'm a guy and from the appearance of this show it should be the kind of thing that would be sheer torture to sit through. The box is very pink looking and it belongs to a sub-genre referred to as "Magical-Girls".
This show should be awful and un-watchable, the sort of thing a guy would run from watching.
Now the reality of this series is that is is genuinely AMAZING. Buy this series, do it now, you will not be sorry. To anyone that enjoys skilful story telling, gorgeous animation and wonderful music, you will love this. There is intelligence and depth to spare in it's characters and the themes explored here. Almost every episode comes with a "LOST" type twist/revelation, though unlike that live-action series when the twists and revelations come they are GENUINE and MEANINGFUL and actually have an emotional resonance with the viewer.
The last third of the series becomes awesomely cosmic and mind-bending and the manner in which the story is resolved both happy and bitter-sweet. When you watch the series through a second time (knowing the ending/outcome) you will notice numerous hints and touches layered into the narrative that you didn't catch the first time.
I would tell anyone to buy this ASAP, the only down-side to getting it is that you will no longer be able to knock "Magical-Girl" shows any more.