Biological machine fueled by hatred eh? I like that. Kinda cruel what they did to Rin but surely there would have been easier ways to stop the sanbi from going berserk besides killing her right? Considering what a plan that was I'm surprised Konoha only sent Kakashi.
Also like mentioned I think Obito deserves more credit than most of us gave him, thinking that he became the way he did because of Rin.