Very good/Very Satisfactory (Or just "Madara" if you prefer)
Pure utter crap of a chapter
Obito will turn good once he finds out Rin isn't coming back.
Hell, to make Obito change sides, all you have to do is keep promising that Rin will/won't come back. He'll change sides accordingly.
I really do not see Madara turning good.
And about Obito, like I said, all it takes is 1 line of dialogue from someone important (say, Madara): "Rin won't be coming back, you'll never see her again."
Obito: OOOOOOOOOOOAAAAAAAAAAAAAAAARRRRRRRRRRRRRGGGGGGGGHHHHH etc....agony etc...tragedy etc...world is trash etc...trash talk etc...
Obito change sides: Complete.
He's a battle-junkie who only wants power. He doesn't have a back story of pure stupidity like Obito. Neither does he have a personality like Nagato.
His personality is unlike any villain in Naruto (maybe except Tobi before the reveal).
Uchiha-levelAngst...take your pick.
I actually thought Kakashi's talk no jutsu will turn Tobi good. I can't see Madara turning good as he does seem to revel in chaos whereas Tobi is now an angsty teen, but he didn't kill for the lulz like Madara did, at least in my opinion. At least, Tobi's evil because of Rin's death. Madara seems to be evil because he loves fracas.
It'll probably be a combo of Naruto's determination and TnJ, Kakashi's TnJ and Madara's betrayal.
Chapter is out at Mangapanda.