The whole series are really good, considering the dates they were released in. I enjoyed watching them, and I will definitely rewatch all the episodes sooner or later.
I have a story issue, though. It was said, that Kary-08 is stronger than both Omega and Xero combined. She even had enough power to create zombies. The thing is, wouldn't it be easier to mess around with their minds, than to just fight them head on? You know, give them hallucinations, get them to fight each other, or in the best scenario (for her) - having both of them under her control. She seemed to be into petting them, she could do that as much as she bloody wanted once she did that. Additionally, if she "despised humans and their puny ideals", wouldn't she want to get rid of them as fast as possible? I'm pretty sure that having two powerful cyborgs by your side would speed up the process. Sorry if that seems like nonsense, but this just keeps baffling me.