TRS was very necessary to set up the whole series, but disturbing to read. Like the rape at the beginning of the Chronicles, but it didn't put me off reading the rest.
Angus: hated him at first, but by the end I was positively urging him to escape on his own. He became, somehow, an almost loveable character. There was something impish about him at the end. I would love to know what he did to HF!
Morn: had a legacy of the true police ethic and stuck to it. OK, she broke the law by not giving the UMC her zone implant control, but the means justified the end. I was so proud of her as she gave her evidence to the Council, and loved the way that at the end she finally gave in to her emotions.
Hashi: also redeemed himself at the end, but his arrogance earlier on could have ruined all Dios' work.
Dios: always found a fail safe, and in the end redeemed himself. Took a hell of a lot of risks though - with other peoples' lives.
Dolph: love him. Would feel safe going anywhere with him.
Min: Stuck to her rigid principles to the end. Brave woman.
Nick: so driven by his ego "I cannot lose", part of which involved Sorus, that he didn't give a fig for anyone else. Cruel and totally selfish.
Spoiler
Sorus: woman with a big problem, but of her own making. In the end she also redeemed herself.
Milos: like I said somewhere else, slimey git!
HF: totally egotistical, on the search for eternal life. Cannot forgive him at all. Good riddance.
So much more could be said, but I offer these rather shallow thoughts. Perhaps they can be discussed in more detail.