BftC, as far as I know, was a critical failure. I am not sure about the sales, but all the sites I read panned the shit, and rightfully so. Daniel's interviews, especially those where he tried to remove the gray-spectrum morality, have only further disheartened me. (As many have stated, if you are going to have gray morality at all in the DCU, it better fucking well be in the Batman mythos - because there's always been a strong vein running through Batman's history. Seriously! HE'S A VIGILANTE WHO USED TO BE HUNTED BY THE POLICE. There's no cutting the shades of gray in Gotham)
His art is distinctly uninteresting and borderline horrible, and his first writing venture was a critical flop, so why, whywhywhy, is he given the chance to write on one of DC's premier books? I understand that DC editorial/management might be grooming him for top-tier status (ha.ha.ha.) but they surely must understand that he has to start from the ground up, like everyone else. Putting him on as class a book as Batman can only hurt, both him and us.