I dunno know if it matters much now, but! The anime itself isn't too bad? It's a little more lighthearted than the other .hack animes, but there are still some dark themes like death. As well as some suggestive themes like the way Ouka, the female werewolf character, is dressed. And I'm not sure if this transfers into the anime (it's been a while since I last watched) but, in the manga, Shugo frequently ogles after the female character avatars. Including his twin sister's. It's not a bad show! It might require some parental supervision, but it's not bad at all~