I just finished Star Driver, finally! I really enjoyed it despite it being kind of formulaic and "Mecha of the Week." The Magic-girl-esque transformations and summonings were cute at first but they just burned three minutes worth of episode time, so that was kind of annoying. There was also plenty of fanservice for those that like that in your anime. But considering that these characters were almost all high school aged (or older), it is a little skeeze, despite the majority of the characters being drawn as quite a bit more mature than high school. Though the fanservice was not at the same level as highschool of the dead, not by any measure. As with almost all shonen (and seinen) anime, the power of friendship and love will overcome any foe!

So with that said, let's go team friendship, with our hands clasped together in friendship we will defeat the evil Cruxi! *cue rainbows and sparkles*