It's morso like LoR+Fates but personally I find it better than fates because no genderbending and over exaggerated fight scenes. There's some magic but not at that wtf levels of fates.
I always loved the closing theme to Outlaw Star. I remember thinking it was strange that such an action-heavy anime would have such a melancholy closing theme, but I loved it. It was easily my favorite part of the entire show.
I also adore the opening to One Punch Man; I think it fits the over-the-top nature of the show perfectly.