To be fair, the drama is pretty intense and you get decent action and the MCs are totally not OP. The art and animation is interesting. My biggest problem is the premise and the lack of explanation for how the titans can even exists... Giant naked humanoids running around eating people is scary, but in many ways so incredibly stupid and if you can't buy that, the series fails.
Oh, if you can' tell I'm not a fan of AoT... but the music is just all around awesome (except, ironically, the opening which everyone else seems to love).