This is a faithful to manga remake, and whether you've seen the orignal anime or read read the manga, or have no experience with the series at all, this is worth the watch.
Characters are well built and you'll quickly find a favorite, though some definitely have some quirks about them. The series is really deep and full of secrets which only get hinted at within the first season. We're back for the long haul and this anime is going until the manga is covered in it's entirety. I CAN'T WAIT!!