I found this series back a few years when the scope of my knowledge of porn was limited to streaming sites. Finding this sort of taboo material (Dolls and sister fetishes) was new and exciting and for that it holds some nostalgia value. Looking back it isn't that exciting or well executed. In the later episodes its filled with hentai grade action sequences which leave you wondering why they would bother. The sex scenes are average and the animation is meh.